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cd79ce90d9
(archive-zip-update-case): Use 7z if found by `executable-find'. The order of searching the available programs is the same as in `archive-zip-extract'. Fixes: debbugs:8968
2244 lines
86 KiB
EmacsLisp
2244 lines
86 KiB
EmacsLisp
;;; arc-mode.el --- simple editing of archives
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;; Copyright (C) 1995, 1997-1998, 2001-2011 Free Software Foundation, Inc.
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;; Author: Morten Welinder <terra@gnu.org>
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;; Keywords: files archives msdog editing major-mode
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;; Favourite-brand-of-beer: None, I hate beer.
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;; NAMING: "arc" is short for "archive" and does not refer specifically
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;; to files whose name end in ".arc"
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;;
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;; This code does not decode any files internally, although it does
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;; understand the directory level of the archives. For this reason,
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;; you should expect this code to need more fiddling than tar-mode.el
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;; (although it at present has fewer bugs :-) In particular, I have
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;; not tested this under Ms-Dog myself.
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;; -------------------------------------
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;; INTERACTION: arc-mode.el should play together with
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;;
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;; * ange-ftp.el: Remote archives (i.e., ones that ange-ftp has brought
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;; to you) are handled by doing all updates on a local
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;; copy. When you make changes to a remote file the
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;; changes will first take effect when the archive buffer
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;; is saved. You will be warned about this.
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;;
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;; * dos-fns.el: (Part of Emacs 19). You get automatic ^M^J <--> ^J
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;; conversion.
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;;
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;; arc-mode.el does not work well with crypt++.el; for the archives as
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;; such this could be fixed (but wouldn't be useful) by declaring such
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;; archives to be "remote". For the members this is a general Emacs
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;; problem that 19.29's file formats may fix.
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;; -------------------------------------
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;; ARCHIVE TYPES: Currently only the archives below are handled, but the
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;; structure for handling just about anything is in place.
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;;
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;; Arc Lzh Zip Zoo Rar 7z
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;; --------------------------------------------
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;; View listing Intern Intern Intern Intern Y Y
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;; Extract member Y Y Y Y Y Y
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;; Save changed member Y Y Y Y N Y
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;; Add new member N N N N N N
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;; Delete member Y Y Y Y N Y
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;; Rename member Y Y N N N N
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;; Chmod - Y Y - N N
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;; Chown - Y - - N N
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;; Chgrp - Y - - N N
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;;
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;; Special thanks to Bill Brodie <wbrodie@panix.com> for very useful tips
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;; on the first released version of this package.
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;;
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;; This code is partly based on tar-mode.el from Emacs.
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;; -------------------------------------
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;; ARCHIVE STRUCTURES:
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;; (This is mostly for myself.)
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;;
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;; ARC A series of (header,file). No interactions among members.
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;;
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;; LZH A series of (header,file). Headers are checksummed. No
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;; interaction among members.
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;; Headers come in three flavours called level 0, 1 and 2 headers.
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;; Level 2 header is free of DOS specific restrictions and most
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;; prevalently used. Also level 1 and 2 headers consist of base
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;; and extension headers. For more details see
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;; http://homepage1.nifty.com/dangan/en/Content/Program/Java/jLHA/Notes/Notes.html
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;; http://www.osirusoft.com/joejared/lzhformat.html
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;;
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;; ZIP A series of (lheader,fil) followed by a "central directory"
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;; which is a series of (cheader) followed by an end-of-
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;; central-dir record possibly followed by junk. The e-o-c-d
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;; links to c-d. cheaders link to lheaders which are basically
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;; cut-down versions of the cheaders.
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;;
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;; ZOO An archive header followed by a series of (header,file).
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;; Each member header points to the next. The archive is
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;; terminated by a bogus header with a zero next link.
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;; -------------------------------------
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;; HOOKS: `foo' means one of the supported archive types.
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;;
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;; archive-mode-hook
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;; archive-foo-mode-hook
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;; archive-extract-hooks
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;;; Code:
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;; -------------------------------------------------------------------------
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;;; Section: Configuration.
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(defgroup archive nil
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"Simple editing of archives."
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:group 'data)
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(defgroup archive-arc nil
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"ARC-specific options to archive."
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:group 'archive)
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(defgroup archive-lzh nil
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"LZH-specific options to archive."
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:group 'archive)
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(defgroup archive-zip nil
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"ZIP-specific options to archive."
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:group 'archive)
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(defgroup archive-zoo nil
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"ZOO-specific options to archive."
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:group 'archive)
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(defcustom archive-tmpdir
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;; make-temp-name is safe here because we use this name
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;; to create a directory.
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(make-temp-name
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(expand-file-name (if (eq system-type 'ms-dos) "ar" "archive.tmp")
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temporary-file-directory))
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"Directory for temporary files made by `arc-mode.el'."
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:type 'directory
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:group 'archive)
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(defcustom archive-remote-regexp "^/[^/:]*[^/:.]:"
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"Regexp recognizing archive files names that are not local.
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A non-local file is one whose file name is not proper outside Emacs.
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A local copy of the archive will be used when updating."
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:type 'regexp
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:group 'archive)
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(defcustom archive-extract-hooks nil
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"Hooks to run when an archive member has been extracted."
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:type 'hook
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:group 'archive)
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;; ------------------------------
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;; Arc archive configuration
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;; We always go via a local file since there seems to be no reliable way
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;; to extract to stdout without junk getting added.
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(defcustom archive-arc-extract
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'("arc" "x")
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"Program and its options to run in order to extract an arc file member.
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Extraction should happen to the current directory. Archive and member
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name will be added."
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:type '(list (string :tag "Program")
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(repeat :tag "Options"
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:inline t
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(string :format "%v")))
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:group 'archive-arc)
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(defcustom archive-arc-expunge
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'("arc" "d")
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"Program and its options to run in order to delete arc file members.
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Archive and member names will be added."
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:type '(list (string :tag "Program")
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(repeat :tag "Options"
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:inline t
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(string :format "%v")))
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:group 'archive-arc)
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(defcustom archive-arc-write-file-member
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'("arc" "u")
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"Program and its options to run in order to update an arc file member.
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Archive and member name will be added."
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:type '(list (string :tag "Program")
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(repeat :tag "Options"
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:inline t
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(string :format "%v")))
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:group 'archive-arc)
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;; ------------------------------
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;; Lzh archive configuration
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(defcustom archive-lzh-extract
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'("lha" "pq")
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"Program and its options to run in order to extract an lzh file member.
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Extraction should happen to standard output. Archive and member name will
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be added."
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:type '(list (string :tag "Program")
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(repeat :tag "Options"
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:inline t
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(string :format "%v")))
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:group 'archive-lzh)
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(defcustom archive-lzh-expunge
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'("lha" "d")
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"Program and its options to run in order to delete lzh file members.
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Archive and member names will be added."
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:type '(list (string :tag "Program")
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(repeat :tag "Options"
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:inline t
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(string :format "%v")))
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:group 'archive-lzh)
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(defcustom archive-lzh-write-file-member
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'("lha" "a")
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"Program and its options to run in order to update an lzh file member.
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Archive and member name will be added."
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:type '(list (string :tag "Program")
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(repeat :tag "Options"
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:inline t
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(string :format "%v")))
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:group 'archive-lzh)
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;; ------------------------------
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;; Zip archive configuration
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(defcustom archive-zip-extract
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(cond ((executable-find "unzip") '("unzip" "-qq" "-c"))
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((executable-find "7z") '("7z" "x" "-so"))
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((executable-find "pkunzip") '("pkunzip" "-e" "-o-"))
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(t '("unzip" "-qq" "-c")))
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"Program and its options to run in order to extract a zip file member.
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Extraction should happen to standard output. Archive and member name will
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be added."
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:type '(list (string :tag "Program")
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(repeat :tag "Options"
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:inline t
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(string :format "%v")))
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:group 'archive-zip)
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;; For several reasons the latter behavior is not desirable in general.
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;; (1) It uses more disk space. (2) Error checking is worse or non-
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;; existent. (3) It tends to do funny things with other systems' file
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;; names.
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(defcustom archive-zip-expunge
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(cond ((executable-find "zip") '("zip" "-d" "-q"))
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((executable-find "7z") '("7z" "d"))
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((executable-find "pkzip") '("pkzip" "-d"))
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(t '("zip" "-d" "-q")))
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"Program and its options to run in order to delete zip file members.
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Archive and member names will be added."
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:type '(list (string :tag "Program")
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(repeat :tag "Options"
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:inline t
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(string :format "%v")))
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:group 'archive-zip)
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(defcustom archive-zip-update
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(cond ((executable-find "zip") '("zip" "-q"))
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((executable-find "7z") '("7z" "u"))
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((executable-find "pkzip") '("pkzip" "-u" "-P"))
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(t '("zip" "-q")))
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"Program and its options to run in order to update a zip file member.
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Options should ensure that specified directory will be put into the zip
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file. Archive and member name will be added."
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:type '(list (string :tag "Program")
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(repeat :tag "Options"
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:inline t
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(string :format "%v")))
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:group 'archive-zip)
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(defcustom archive-zip-update-case
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(cond ((executable-find "zip") '("zip" "-q" "-k"))
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((executable-find "7z") '("7z" "u"))
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((executable-find "pkzip") '("pkzip" "-u" "-P"))
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(t '("zip" "-q" "-k")))
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"Program and its options to run in order to update a case fiddled zip member.
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Options should ensure that specified directory will be put into the zip file.
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Archive and member name will be added."
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:type '(list (string :tag "Program")
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(repeat :tag "Options"
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:inline t
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(string :format "%v")))
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:group 'archive-zip)
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(defcustom archive-zip-case-fiddle t
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"If non-nil then zip file members may be down-cased.
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This case fiddling will only happen for members created by a system
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that uses caseless file names."
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:type 'boolean
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:group 'archive-zip)
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;; ------------------------------
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;; Zoo archive configuration
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(defcustom archive-zoo-extract
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'("zoo" "xpq")
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"Program and its options to run in order to extract a zoo file member.
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Extraction should happen to standard output. Archive and member name will
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be added."
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:type '(list (string :tag "Program")
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(repeat :tag "Options"
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:inline t
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(string :format "%v")))
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:group 'archive-zoo)
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(defcustom archive-zoo-expunge
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'("zoo" "DqPP")
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"Program and its options to run in order to delete zoo file members.
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Archive and member names will be added."
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:type '(list (string :tag "Program")
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(repeat :tag "Options"
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:inline t
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(string :format "%v")))
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:group 'archive-zoo)
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(defcustom archive-zoo-write-file-member
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'("zoo" "a")
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"Program and its options to run in order to update a zoo file member.
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Archive and member name will be added."
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:type '(list (string :tag "Program")
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(repeat :tag "Options"
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:inline t
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(string :format "%v")))
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:group 'archive-zoo)
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;; ------------------------------
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;; 7z archive configuration
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(defcustom archive-7z-extract
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'("7z" "x" "-so")
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"Program and its options to run in order to extract a 7z file member.
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Extraction should happen to standard output. Archive and member name will
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be added."
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:type '(list (string :tag "Program")
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(repeat :tag "Options"
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:inline t
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(string :format "%v")))
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:group 'archive-7z)
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(defcustom archive-7z-expunge
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'("7z" "d")
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"Program and its options to run in order to delete 7z file members.
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Archive and member names will be added."
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:type '(list (string :tag "Program")
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(repeat :tag "Options"
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:inline t
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(string :format "%v")))
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:group 'archive-7z)
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(defcustom archive-7z-update
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'("7z" "u")
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"Program and its options to run in order to update a 7z file member.
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Options should ensure that specified directory will be put into the 7z
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file. Archive and member name will be added."
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:type '(list (string :tag "Program")
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(repeat :tag "Options"
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:inline t
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(string :format "%v")))
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:group 'archive-7z)
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;; -------------------------------------------------------------------------
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;;; Section: Variables
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(defvar archive-subtype nil "Symbol describing archive type.")
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(defvar archive-file-list-start nil "Position of first contents line.")
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(defvar archive-file-list-end nil "Position just after last contents line.")
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(defvar archive-proper-file-start nil "Position of real archive's start.")
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(defvar archive-read-only nil "Non-nil if the archive is read-only on disk.")
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(defvar archive-local-name nil "Name of local copy of remote archive.")
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(defvar archive-mode-map
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(let ((map (make-keymap)))
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(set-keymap-parent map special-mode-map)
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(define-key map " " 'archive-next-line)
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(define-key map "a" 'archive-alternate-display)
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;;(define-key map "c" 'archive-copy)
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(define-key map "d" 'archive-flag-deleted)
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(define-key map "\C-d" 'archive-flag-deleted)
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(define-key map "e" 'archive-extract)
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(define-key map "f" 'archive-extract)
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(define-key map "\C-m" 'archive-extract)
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(define-key map "m" 'archive-mark)
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(define-key map "n" 'archive-next-line)
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(define-key map "\C-n" 'archive-next-line)
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(define-key map [down] 'archive-next-line)
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(define-key map "o" 'archive-extract-other-window)
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(define-key map "p" 'archive-previous-line)
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(define-key map "\C-p" 'archive-previous-line)
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(define-key map [up] 'archive-previous-line)
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(define-key map "r" 'archive-rename-entry)
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(define-key map "u" 'archive-unflag)
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(define-key map "\M-\C-?" 'archive-unmark-all-files)
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(define-key map "v" 'archive-view)
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(define-key map "x" 'archive-expunge)
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(define-key map "\177" 'archive-unflag-backwards)
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(define-key map "E" 'archive-extract-other-window)
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(define-key map "M" 'archive-chmod-entry)
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(define-key map "G" 'archive-chgrp-entry)
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(define-key map "O" 'archive-chown-entry)
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;; Let mouse-1 follow the link.
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(define-key map [follow-link] 'mouse-face)
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(if (fboundp 'command-remapping)
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(progn
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(define-key map [remap advertised-undo] 'archive-undo)
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(define-key map [remap undo] 'archive-undo))
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(substitute-key-definition 'advertised-undo 'archive-undo map global-map)
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(substitute-key-definition 'undo 'archive-undo map global-map))
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(define-key map
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(if (featurep 'xemacs) 'button2 [mouse-2]) 'archive-extract)
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(if (featurep 'xemacs)
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() ; out of luck
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(define-key map [menu-bar immediate]
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(cons "Immediate" (make-sparse-keymap "Immediate")))
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(define-key map [menu-bar immediate alternate]
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'(menu-item "Alternate Display" archive-alternate-display
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:enable (boundp (archive-name "alternate-display"))
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:help "Toggle alternate file info display"))
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(define-key map [menu-bar immediate view]
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'(menu-item "View This File" archive-view
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:help "Display file at cursor in View Mode"))
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(define-key map [menu-bar immediate display]
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'(menu-item "Display in Other Window" archive-display-other-window
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:help "Display file at cursor in another window"))
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(define-key map [menu-bar immediate find-file-other-window]
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'(menu-item "Find in Other Window" archive-extract-other-window
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:help "Edit file at cursor in another window"))
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(define-key map [menu-bar immediate find-file]
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'(menu-item "Find This File" archive-extract
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:help "Extract file at cursor and edit it"))
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(define-key map [menu-bar mark]
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(cons "Mark" (make-sparse-keymap "Mark")))
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(define-key map [menu-bar mark unmark-all]
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'(menu-item "Unmark All" archive-unmark-all-files
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:help "Unmark all marked files"))
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(define-key map [menu-bar mark deletion]
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'(menu-item "Flag" archive-flag-deleted
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:help "Flag file at cursor for deletion"))
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(define-key map [menu-bar mark unmark]
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'(menu-item "Unflag" archive-unflag
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:help "Unmark file at cursor"))
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(define-key map [menu-bar mark mark]
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'(menu-item "Mark" archive-mark
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:help "Mark file at cursor"))
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(define-key map [menu-bar operate]
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(cons "Operate" (make-sparse-keymap "Operate")))
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(define-key map [menu-bar operate chown]
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'(menu-item "Change Owner..." archive-chown-entry
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:enable (fboundp (archive-name "chown-entry"))
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:help "Change owner of marked files"))
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(define-key map [menu-bar operate chgrp]
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'(menu-item "Change Group..." archive-chgrp-entry
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:enable (fboundp (archive-name "chgrp-entry"))
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:help "Change group ownership of marked files"))
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(define-key map [menu-bar operate chmod]
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'(menu-item "Change Mode..." archive-chmod-entry
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:enable (fboundp (archive-name "chmod-entry"))
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:help "Change mode (permissions) of marked files"))
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(define-key map [menu-bar operate rename]
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'(menu-item "Rename to..." archive-rename-entry
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:enable (fboundp (archive-name "rename-entry"))
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:help "Rename marked files"))
|
|
;;(define-key map [menu-bar operate copy]
|
|
;; '(menu-item "Copy to..." archive-copy))
|
|
(define-key map [menu-bar operate expunge]
|
|
'(menu-item "Expunge Marked Files" archive-expunge
|
|
:help "Delete all flagged files from archive"))
|
|
map))
|
|
"Local keymap for archive mode listings.")
|
|
(defvar archive-file-name-indent nil "Column where file names start.")
|
|
|
|
(defvar archive-remote nil "Non-nil if the archive is outside file system.")
|
|
(make-variable-buffer-local 'archive-remote)
|
|
(put 'archive-remote 'permanent-local t)
|
|
|
|
(defvar archive-member-coding-system nil "Coding-system of archive member.")
|
|
(make-variable-buffer-local 'archive-member-coding-system)
|
|
|
|
(defvar archive-alternate-display nil
|
|
"Non-nil when alternate information is shown.")
|
|
(make-variable-buffer-local 'archive-alternate-display)
|
|
(put 'archive-alternate-display 'permanent-local t)
|
|
|
|
(defvar archive-superior-buffer nil "In archive members, points to archive.")
|
|
(put 'archive-superior-buffer 'permanent-local t)
|
|
|
|
(defvar archive-subfile-mode nil "Non-nil in archive member buffers.")
|
|
(make-variable-buffer-local 'archive-subfile-mode)
|
|
(put 'archive-subfile-mode 'permanent-local t)
|
|
|
|
(defvar archive-file-name-coding-system nil)
|
|
(make-variable-buffer-local 'archive-file-name-coding-system)
|
|
(put 'archive-file-name-coding-system 'permanent-local t)
|
|
|
|
(defvar archive-files nil
|
|
"Vector of file descriptors.
|
|
Each descriptor is a vector of the form
|
|
[EXT-FILE-NAME INT-FILE-NAME CASE-FIDDLED MODE ...]")
|
|
(make-variable-buffer-local 'archive-files)
|
|
|
|
;; -------------------------------------------------------------------------
|
|
;;; Section: Support functions.
|
|
|
|
(eval-when-compile
|
|
(defsubst byte-after (pos)
|
|
"Like char-after but an eight-bit char is converted to unibyte."
|
|
(multibyte-char-to-unibyte (char-after pos)))
|
|
(defsubst insert-unibyte (&rest args)
|
|
"Like insert but don't make unibyte string and eight-bit char multibyte."
|
|
(dolist (elt args)
|
|
(if (integerp elt)
|
|
(insert (if (< elt 128) elt (decode-char 'eight-bit elt)))
|
|
(insert (string-to-multibyte elt)))))
|
|
)
|
|
|
|
(defsubst archive-name (suffix)
|
|
(intern (concat "archive-" (symbol-name archive-subtype) "-" suffix)))
|
|
|
|
(defun archive-l-e (str &optional len float)
|
|
"Convert little endian string/vector STR to integer.
|
|
Alternatively, STR may be a buffer position in the current buffer
|
|
in which case a second argument, length LEN, should be supplied.
|
|
FLOAT, if non-nil, means generate and return a float instead of an integer
|
|
\(use this for numbers that can overflow the Emacs integer)."
|
|
(if (stringp str)
|
|
(setq len (length str))
|
|
(setq str (buffer-substring str (+ str len))))
|
|
(setq str (string-as-unibyte str))
|
|
(let ((result 0)
|
|
(i 0))
|
|
(while (< i len)
|
|
(setq i (1+ i)
|
|
result (+ (if float (* result 256.0) (ash result 8))
|
|
(aref str (- len i)))))
|
|
result))
|
|
|
|
(defun archive-int-to-mode (mode)
|
|
"Turn an integer like 0700 (i.e., 448) into a mode string like -rwx------."
|
|
;; FIXME: merge with tar-grind-file-mode.
|
|
(string
|
|
(if (zerop (logand 8192 mode))
|
|
(if (zerop (logand 16384 mode)) ?- ?d)
|
|
?c) ; completeness
|
|
(if (zerop (logand 256 mode)) ?- ?r)
|
|
(if (zerop (logand 128 mode)) ?- ?w)
|
|
(if (zerop (logand 64 mode))
|
|
(if (zerop (logand 1024 mode)) ?- ?S)
|
|
(if (zerop (logand 1024 mode)) ?x ?s))
|
|
(if (zerop (logand 32 mode)) ?- ?r)
|
|
(if (zerop (logand 16 mode)) ?- ?w)
|
|
(if (zerop (logand 8 mode))
|
|
(if (zerop (logand 2048 mode)) ?- ?S)
|
|
(if (zerop (logand 2048 mode)) ?x ?s))
|
|
(if (zerop (logand 4 mode)) ?- ?r)
|
|
(if (zerop (logand 2 mode)) ?- ?w)
|
|
(if (zerop (logand 1 mode)) ?- ?x)))
|
|
|
|
(defun archive-calc-mode (oldmode newmode &optional error)
|
|
"From the integer OLDMODE and the string NEWMODE calculate a new file mode.
|
|
NEWMODE may be an octal number including a leading zero in which case it
|
|
will become the new mode.\n
|
|
NEWMODE may also be a relative specification like \"og-rwx\" in which case
|
|
OLDMODE will be modified accordingly just like chmod(2) would have done.\n
|
|
If optional third argument ERROR is non-nil an error will be signaled if
|
|
the mode is invalid. If ERROR is nil then nil will be returned."
|
|
(cond ((string-match "^0[0-7]*$" newmode)
|
|
(let ((result 0)
|
|
(len (length newmode))
|
|
(i 1))
|
|
(while (< i len)
|
|
(setq result (+ (lsh result 3) (aref newmode i) (- ?0))
|
|
i (1+ i)))
|
|
(logior (logand oldmode 65024) result)))
|
|
((string-match "^\\([agou]+\\)\\([---+=]\\)\\([rwxst]+\\)$" newmode)
|
|
(let ((who 0)
|
|
(result oldmode)
|
|
(op (aref newmode (match-beginning 2)))
|
|
(bits 0)
|
|
(i (match-beginning 3)))
|
|
(while (< i (match-end 3))
|
|
(let ((rwx (aref newmode i)))
|
|
(setq bits (logior bits (cond ((= rwx ?r) 292)
|
|
((= rwx ?w) 146)
|
|
((= rwx ?x) 73)
|
|
((= rwx ?s) 3072)
|
|
((= rwx ?t) 512)))
|
|
i (1+ i))))
|
|
(while (< who (match-end 1))
|
|
(let* ((whoc (aref newmode who))
|
|
(whomask (cond ((= whoc ?a) 4095)
|
|
((= whoc ?u) 1472)
|
|
((= whoc ?g) 2104)
|
|
((= whoc ?o) 7))))
|
|
(if (= op ?=)
|
|
(setq result (logand result (lognot whomask))))
|
|
(if (= op ?-)
|
|
(setq result (logand result (lognot (logand whomask bits))))
|
|
(setq result (logior result (logand whomask bits)))))
|
|
(setq who (1+ who)))
|
|
result))
|
|
(t
|
|
(if error
|
|
(error "Invalid mode specification: %s" newmode)))))
|
|
|
|
(defun archive-dosdate (date)
|
|
"Stringify dos packed DATE record."
|
|
(let ((year (+ 1980 (logand (ash date -9) 127)))
|
|
(month (logand (ash date -5) 15))
|
|
(day (logand date 31)))
|
|
(if (or (> month 12) (< month 1))
|
|
""
|
|
(format "%2d-%s-%d"
|
|
day
|
|
(aref ["Jan" "Feb" "Mar" "Apr" "May" "Jun"
|
|
"Jul" "Aug" "Sep" "Oct" "Nov" "Dec"] (1- month))
|
|
year))))
|
|
|
|
(defun archive-dostime (time)
|
|
"Stringify dos packed TIME record."
|
|
(let ((hour (logand (ash time -11) 31))
|
|
(minute (logand (ash time -5) 63))
|
|
(second (* 2 (logand time 31)))) ; 2 seconds resolution
|
|
(format "%02d:%02d:%02d" hour minute second)))
|
|
|
|
(defun archive-unixdate (low high)
|
|
"Stringify Unix (LOW HIGH) date."
|
|
(let ((str (current-time-string (cons high low))))
|
|
(format "%s-%s-%s"
|
|
(substring str 8 10)
|
|
(substring str 4 7)
|
|
(substring str 20 24))))
|
|
|
|
(defun archive-unixtime (low high)
|
|
"Stringify Unix (LOW HIGH) time."
|
|
(let ((str (current-time-string (cons high low))))
|
|
(substring str 11 19)))
|
|
|
|
(defun archive-get-lineno ()
|
|
(if (>= (point) archive-file-list-start)
|
|
(count-lines archive-file-list-start
|
|
(line-beginning-position))
|
|
0))
|
|
|
|
(defun archive-get-descr (&optional noerror)
|
|
"Return the descriptor vector for file at point.
|
|
Does not signal an error if optional argument NOERROR is non-nil."
|
|
(let ((no (archive-get-lineno)))
|
|
(if (and (>= (point) archive-file-list-start)
|
|
(< no (length archive-files)))
|
|
(let ((item (aref archive-files no)))
|
|
(if (vectorp item)
|
|
item
|
|
(if (not noerror)
|
|
(error "Entry is not a regular member of the archive"))))
|
|
(if (not noerror)
|
|
(error "Line does not describe a member of the archive")))))
|
|
;; -------------------------------------------------------------------------
|
|
;;; Section: the mode definition
|
|
|
|
;;;###autoload
|
|
(defun archive-mode (&optional force)
|
|
"Major mode for viewing an archive file in a dired-like way.
|
|
You can move around using the usual cursor motion commands.
|
|
Letters no longer insert themselves.
|
|
Type `e' to pull a file out of the archive and into its own buffer;
|
|
or click mouse-2 on the file's line in the archive mode buffer.
|
|
|
|
If you edit a sub-file of this archive (as with the `e' command) and
|
|
save it, the contents of that buffer will be saved back into the
|
|
archive.
|
|
|
|
\\{archive-mode-map}"
|
|
;; This is not interactive because you shouldn't be turning this
|
|
;; mode on and off. You can corrupt things that way.
|
|
(if (zerop (buffer-size))
|
|
;; At present we cannot create archives from scratch
|
|
(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))))
|
|
(kill-all-local-variables)
|
|
(make-local-variable 'archive-subtype)
|
|
(setq archive-subtype type)
|
|
|
|
;; Buffer contains treated image of file before the file contents
|
|
(make-local-variable 'revert-buffer-function)
|
|
(setq revert-buffer-function 'archive-mode-revert)
|
|
(auto-save-mode 0)
|
|
|
|
;; Remote archives are not written by a hook.
|
|
(if archive-remote nil
|
|
(add-hook 'write-contents-functions 'archive-write-file nil t))
|
|
|
|
(make-local-variable 'require-final-newline)
|
|
(setq require-final-newline nil)
|
|
(make-local-variable 'local-enable-local-variables)
|
|
(setq local-enable-local-variables nil)
|
|
|
|
;; Prevent loss of data when saving the file.
|
|
(make-local-variable 'file-precious-flag)
|
|
(setq file-precious-flag t)
|
|
|
|
(make-local-variable 'archive-read-only)
|
|
;; Archives which are inside other archives and whose
|
|
;; names are invalid for this OS, can't be written.
|
|
(setq archive-read-only
|
|
(or (not (file-writable-p (buffer-file-name)))
|
|
(and archive-subfile-mode
|
|
(string-match file-name-invalid-regexp
|
|
(aref archive-subfile-mode 0)))))
|
|
|
|
;; Should we use a local copy when accessing from outside Emacs?
|
|
(make-local-variable 'archive-local-name)
|
|
|
|
;; An archive can contain another archive whose name is invalid
|
|
;; on local filesystem. Treat such archives as remote.
|
|
(or archive-remote
|
|
(setq archive-remote
|
|
(or (string-match archive-remote-regexp (buffer-file-name))
|
|
(string-match file-name-invalid-regexp
|
|
(buffer-file-name)))))
|
|
|
|
(setq major-mode 'archive-mode)
|
|
(setq mode-name (concat typename "-Archive"))
|
|
;; Run archive-foo-mode-hook and archive-mode-hook
|
|
(run-mode-hooks (archive-name "mode-hook") 'archive-mode-hook)
|
|
(use-local-map archive-mode-map))
|
|
|
|
(make-local-variable 'archive-proper-file-start)
|
|
(make-local-variable 'archive-file-list-start)
|
|
(make-local-variable 'archive-file-list-end)
|
|
(make-local-variable 'archive-file-name-indent)
|
|
(setq archive-file-name-coding-system
|
|
(or file-name-coding-system
|
|
default-file-name-coding-system
|
|
locale-coding-system))
|
|
(if (default-value 'enable-multibyte-characters)
|
|
(set-buffer-multibyte 'to))
|
|
(archive-summarize nil)
|
|
(setq buffer-read-only t))))
|
|
|
|
;; Archive mode is suitable only for specially formatted data.
|
|
(put 'archive-mode 'mode-class 'special)
|
|
|
|
(let ((item1 '(archive-subfile-mode " Archive")))
|
|
(or (member item1 minor-mode-alist)
|
|
(setq minor-mode-alist (cons item1 minor-mode-alist))))
|
|
;; -------------------------------------------------------------------------
|
|
(defun archive-find-type ()
|
|
(widen)
|
|
(goto-char (point-min))
|
|
;; 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 "\\(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 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)
|
|
((looking-at "7z\274\257\047\034") '7z)
|
|
(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;
|
|
then narrow to it, so that only that listing
|
|
is visible (and the real data of the buffer is hidden).
|
|
Optional argument SHUT-UP, if non-nil, means don't print messages
|
|
when parsing the archive."
|
|
(widen)
|
|
(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))
|
|
(setq archive-files (funcall (archive-name "summarize")))
|
|
(or shut-up
|
|
(message "Parsing archive file...done."))
|
|
(setq archive-proper-file-start (point-marker))
|
|
(narrow-to-region (point-min) (point))
|
|
(set-buffer-modified-p nil)
|
|
(buffer-enable-undo))
|
|
(goto-char archive-file-list-start)
|
|
(archive-next-line 0))
|
|
|
|
(defun archive-resummarize ()
|
|
"Recreate the contents listing of an archive."
|
|
(let ((no (archive-get-lineno)))
|
|
(archive-desummarize)
|
|
(archive-summarize t)
|
|
(goto-char archive-file-list-start)
|
|
(archive-next-line no)))
|
|
|
|
(defun archive-summarize-files (files)
|
|
"Insert a description of a list of files annotated with proper mouse face."
|
|
(setq archive-file-list-start (point-marker))
|
|
(setq archive-file-name-indent (if files (aref (car files) 1) 0))
|
|
;; We don't want to do an insert for each element since that takes too
|
|
;; long when the archive -- which has to be moved in memory -- is large.
|
|
(insert
|
|
(apply
|
|
(function concat)
|
|
(mapcar
|
|
(lambda (fil)
|
|
;; Using `concat' here copies the text also, so we can add
|
|
;; properties without problems.
|
|
(let ((text (concat (aref fil 0) "\n")))
|
|
(if (featurep 'xemacs)
|
|
() ; out of luck
|
|
(add-text-properties
|
|
(aref fil 1) (aref fil 2)
|
|
'(mouse-face highlight
|
|
help-echo "mouse-2: extract this file into a buffer")
|
|
text))
|
|
text))
|
|
files)))
|
|
(setq archive-file-list-end (point-marker)))
|
|
|
|
(defun archive-alternate-display ()
|
|
"Toggle alternative display.
|
|
To avoid very long lines archive mode does not show all information.
|
|
This function changes the set of information shown for each files."
|
|
(interactive)
|
|
(setq archive-alternate-display (not archive-alternate-display))
|
|
(archive-resummarize))
|
|
;; -------------------------------------------------------------------------
|
|
;;; Section: Local archive copy handling
|
|
|
|
(defun archive-unique-fname (fname dir)
|
|
"Make sure a file FNAME can be created uniquely in directory DIR.
|
|
|
|
If FNAME can be uniquely created in DIR, it is returned unaltered.
|
|
If FNAME is something our underlying filesystem can't grok, or if another
|
|
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))
|
|
(tmpfile
|
|
(expand-file-name
|
|
(if (if (fboundp 'msdos-long-file-names)
|
|
(not (msdos-long-file-names)))
|
|
"am"
|
|
"arc-mode.")
|
|
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)
|
|
(let ((coding-system-for-write 'no-conversion))
|
|
(if archive-remote
|
|
(let ((start (point-max))
|
|
;; Sometimes ARCHIVE is invalid while its actual name, as
|
|
;; recorded in its parent archive, is not. For example, an
|
|
;; archive bar.zip inside another archive foo.zip gets a name
|
|
;; "foo.zip:bar.zip", which is invalid on DOS/Windows.
|
|
;; So use the actual name if available.
|
|
(archive-name
|
|
(or (and archive-subfile-mode (aref archive-subfile-mode 0))
|
|
archive)))
|
|
(setq archive-local-name
|
|
(archive-unique-fname archive-name archive-tmpdir))
|
|
(save-restriction
|
|
(widen)
|
|
(write-region start (point-max) archive-local-name nil 'nomessage))
|
|
archive-local-name)
|
|
(if (buffer-modified-p) (save-buffer))
|
|
archive)))
|
|
|
|
(defun archive-maybe-update (unchanged)
|
|
(if archive-remote
|
|
(let ((name archive-local-name)
|
|
(modified (buffer-modified-p))
|
|
(coding-system-for-read 'no-conversion)
|
|
(lno (archive-get-lineno))
|
|
(inhibit-read-only t))
|
|
(if unchanged nil
|
|
(setq archive-files nil)
|
|
(erase-buffer)
|
|
(insert-file-contents name)
|
|
(archive-mode t)
|
|
(goto-char archive-file-list-start)
|
|
(archive-next-line lno))
|
|
(archive-delete-local name)
|
|
(if (not unchanged)
|
|
(message
|
|
"Buffer `%s' must be saved for changes to take effect"
|
|
(buffer-name (current-buffer))))
|
|
(set-buffer-modified-p (or modified (not unchanged))))))
|
|
|
|
(defun archive-delete-local (name)
|
|
"Delete file NAME and its parents up to and including `archive-tmpdir'."
|
|
(let ((again t)
|
|
(top (directory-file-name (file-name-as-directory archive-tmpdir))))
|
|
(condition-case nil
|
|
(delete-file name)
|
|
(error nil))
|
|
(while again
|
|
(setq name (directory-file-name (file-name-directory name)))
|
|
(condition-case nil
|
|
(delete-directory name)
|
|
(error nil))
|
|
(if (string= name top) (setq again nil)))))
|
|
;; -------------------------------------------------------------------------
|
|
;;; 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))
|
|
(apply op args))))
|
|
|
|
(defun archive-set-buffer-as-visiting-file (filename)
|
|
"Set the current buffer as if it were visiting FILENAME."
|
|
(save-excursion
|
|
(goto-char (point-min))
|
|
(let ((buffer-undo-list t)
|
|
(coding
|
|
(or coding-system-for-read
|
|
(and set-auto-coding-function
|
|
(save-excursion
|
|
(funcall set-auto-coding-function
|
|
filename (- (point-max) (point-min)))))
|
|
;; dos-w32.el defines the function
|
|
;; find-buffer-file-type-coding-system for DOS/Windows
|
|
;; systems which preserves the coding-system of existing files.
|
|
;; (That function is called via file-coding-system-alist.)
|
|
;; Here, we want it to act as if the extracted file existed.
|
|
;; The following let-binding of file-name-handler-alist forces
|
|
;; find-file-not-found-set-buffer-file-coding-system to ignore
|
|
;; the file's name (see dos-w32.el).
|
|
(let ((file-name-handler-alist
|
|
'(("" . archive-file-name-handler))))
|
|
(car (find-operation-coding-system
|
|
'insert-file-contents
|
|
(cons filename (current-buffer)) t))))))
|
|
(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)
|
|
(after-insert-file-set-coding (- (point-max) (point-min))))))
|
|
|
|
(define-obsolete-function-alias 'archive-mouse-extract 'archive-extract "22.1")
|
|
|
|
(defun archive-extract (&optional other-window-p event)
|
|
"In archive mode, extract this entry of the archive into its own buffer."
|
|
(interactive (list nil last-input-event))
|
|
(if event (posn-set-point (event-end event)))
|
|
(let* ((view-p (eq other-window-p 'view))
|
|
(descr (archive-get-descr))
|
|
(ename (aref descr 0))
|
|
(iname (aref descr 1))
|
|
(archive-buffer (current-buffer))
|
|
(arcdir default-directory)
|
|
(archive (buffer-file-name))
|
|
(arcname (file-name-nondirectory archive))
|
|
(bufname (concat (file-name-nondirectory iname) " (" arcname ")"))
|
|
(extractor (archive-name "extract"))
|
|
;; Members with file names which aren't valid for the
|
|
;; underlying filesystem, are treated as read-only.
|
|
(read-only-p (or archive-read-only
|
|
view-p
|
|
(string-match file-name-invalid-regexp ename)))
|
|
(arcfilename (expand-file-name (concat arcname ":" iname)))
|
|
(buffer (get-buffer bufname))
|
|
(just-created nil)
|
|
(file-name-coding archive-file-name-coding-system))
|
|
(if (and buffer
|
|
(string= (buffer-file-name buffer) arcfilename))
|
|
nil
|
|
(setq archive (archive-maybe-copy archive))
|
|
(setq bufname (generate-new-buffer-name bufname))
|
|
(setq buffer (get-buffer-create bufname))
|
|
(setq just-created t)
|
|
(with-current-buffer buffer
|
|
(setq buffer-file-name arcfilename)
|
|
(setq buffer-file-truename
|
|
(abbreviate-file-name buffer-file-name))
|
|
;; Set the default-directory to the dir of the superior buffer.
|
|
(setq default-directory arcdir)
|
|
(make-local-variable 'archive-superior-buffer)
|
|
(setq archive-superior-buffer archive-buffer)
|
|
(add-hook 'write-file-functions 'archive-write-file-member nil t)
|
|
(setq archive-subfile-mode descr)
|
|
(setq archive-file-name-coding-system file-name-coding)
|
|
(if (and
|
|
(null
|
|
(let (;; We may have to encode file name arguement for
|
|
;; external programs.
|
|
(coding-system-for-write
|
|
(and enable-multibyte-characters
|
|
archive-file-name-coding-system))
|
|
;; We read an archive member by no-conversion at
|
|
;; first, then decode appropriately by calling
|
|
;; archive-set-buffer-as-visiting-file later.
|
|
(coding-system-for-read 'no-conversion))
|
|
(condition-case err
|
|
(if (fboundp extractor)
|
|
(funcall extractor archive ename)
|
|
(archive-*-extract archive ename
|
|
(symbol-value extractor)))
|
|
(error
|
|
(ding (message "%s" (error-message-string err)))
|
|
nil))))
|
|
just-created)
|
|
(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)
|
|
(setq buffer-read-only read-only-p)
|
|
(setq buffer-undo-list nil)
|
|
(set-buffer-modified-p nil)
|
|
(setq buffer-saved-size (buffer-size))
|
|
(normal-mode)
|
|
;; Just in case an archive occurs inside another archive.
|
|
(when (derived-mode-p 'archive-mode)
|
|
(setq archive-remote t)
|
|
(if read-only-p (setq archive-read-only t))
|
|
;; We will write out the archive ourselves if it is
|
|
;; part of another archive.
|
|
(remove-hook 'write-contents-functions 'archive-write-file t))
|
|
(run-hooks 'archive-extract-hooks)
|
|
(if archive-read-only
|
|
(message "Note: altering this archive is not implemented."))))
|
|
(archive-maybe-update t))
|
|
(or (not (buffer-name buffer))
|
|
(cond
|
|
(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 (pop-to-buffer-same-window buffer))))))
|
|
|
|
(defun archive-*-extract (archive name command)
|
|
(let* ((default-directory (file-name-as-directory archive-tmpdir))
|
|
(tmpfile (expand-file-name (file-name-nondirectory name)
|
|
default-directory))
|
|
exit-status success)
|
|
(make-directory (directory-file-name default-directory) t)
|
|
(setq exit-status
|
|
(apply 'call-process
|
|
(car command)
|
|
nil
|
|
nil
|
|
nil
|
|
(append (cdr command) (list archive name))))
|
|
(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)
|
|
(setq success t)))
|
|
((numberp exit-status)
|
|
(ding
|
|
(message "`%s' exited with status %d" (car command) exit-status)))
|
|
((stringp exit-status)
|
|
(ding (message "`%s' aborted: %s" (car command) exit-status)))
|
|
(t
|
|
(ding (message "`%s' failed" (car command)))))
|
|
(archive-delete-local tmpfile)
|
|
success))
|
|
|
|
(defun archive-extract-by-stdout (archive name command &optional stderr-file)
|
|
(apply 'call-process
|
|
(car command)
|
|
nil
|
|
(if stderr-file (list t stderr-file) t)
|
|
nil
|
|
(append (cdr command) (list archive name))))
|
|
|
|
(defun archive-extract-other-window ()
|
|
"In archive mode, find this member in another window."
|
|
(interactive)
|
|
(archive-extract t))
|
|
|
|
(defun archive-display-other-window ()
|
|
"In archive mode, display this member in another window."
|
|
(interactive)
|
|
(archive-extract 'display))
|
|
|
|
(defun archive-view ()
|
|
"In archive mode, view the member on this line."
|
|
(interactive)
|
|
(archive-extract 'view))
|
|
|
|
(defun archive-add-new-member (arcbuf name)
|
|
"Add current buffer to the archive in ARCBUF naming it NAME."
|
|
(interactive
|
|
(list (get-buffer
|
|
(read-buffer "Buffer containing archive: "
|
|
;; Find first archive buffer and suggest that
|
|
(let ((bufs (buffer-list)))
|
|
(while (and bufs
|
|
(not (with-current-buffer (car bufs)
|
|
(derived-mode-p 'archive-mode))))
|
|
(setq bufs (cdr bufs)))
|
|
(if bufs
|
|
(car bufs)
|
|
(error "There are no archive buffers")))
|
|
t))
|
|
(read-string "File name in archive: "
|
|
(if buffer-file-name
|
|
(file-name-nondirectory buffer-file-name)
|
|
""))))
|
|
(with-current-buffer arcbuf
|
|
(or (derived-mode-p 'archive-mode)
|
|
(error "Buffer is not an archive buffer"))
|
|
(if archive-read-only
|
|
(error "Archive is read-only")))
|
|
(if (eq arcbuf (current-buffer))
|
|
(error "An archive buffer cannot be added to itself"))
|
|
(if (string= name "")
|
|
(error "Archive members may not be given empty names"))
|
|
(let ((func (with-current-buffer arcbuf
|
|
(archive-name "add-new-member")))
|
|
(membuf (current-buffer)))
|
|
(if (fboundp func)
|
|
(with-current-buffer arcbuf
|
|
(funcall func buffer-file-name membuf name))
|
|
(error "Adding a new member is not supported for this archive type"))))
|
|
;; -------------------------------------------------------------------------
|
|
;;; Section: IO stuff
|
|
|
|
(defun archive-write-file-member ()
|
|
(save-excursion
|
|
(save-restriction
|
|
(message "Updating archive...")
|
|
(widen)
|
|
(let ((writer (with-current-buffer archive-superior-buffer
|
|
(archive-name "write-file-member")))
|
|
(archive (with-current-buffer archive-superior-buffer
|
|
(archive-maybe-copy (buffer-file-name)))))
|
|
(if (fboundp writer)
|
|
(funcall writer archive archive-subfile-mode)
|
|
(archive-*-write-file-member archive
|
|
archive-subfile-mode
|
|
(symbol-value writer)))
|
|
(set-buffer-modified-p nil)
|
|
(message "Updating archive...done"))
|
|
(set-buffer archive-superior-buffer)
|
|
(if (not archive-remote) (revert-buffer) (archive-maybe-update nil))))
|
|
;; Restore the value of last-coding-system-used, so that basic-save-buffer
|
|
;; won't reset the coding-system of this archive member.
|
|
(if (local-variable-p 'archive-member-coding-system)
|
|
(setq last-coding-system-used archive-member-coding-system))
|
|
t)
|
|
|
|
(defun archive-*-write-file-member (archive descr command)
|
|
(let* ((ename (aref descr 0))
|
|
(tmpfile (expand-file-name ename archive-tmpdir))
|
|
(top (directory-file-name (file-name-as-directory archive-tmpdir)))
|
|
(default-directory (file-name-as-directory top)))
|
|
(unwind-protect
|
|
(progn
|
|
(make-directory (file-name-directory tmpfile) t)
|
|
;; If the member is itself an archive, write it without
|
|
;; the dired-like listing we created.
|
|
(if (eq major-mode 'archive-mode)
|
|
(archive-write-file tmpfile)
|
|
(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
|
|
;; archive-write-file-member, above).
|
|
(setq archive-member-coding-system last-coding-system-used)
|
|
(if (aref descr 3)
|
|
;; Set the file modes, but make sure we can read it.
|
|
(set-file-modes tmpfile (logior ?\400 (aref descr 3))))
|
|
(setq ename
|
|
(encode-coding-string ename archive-file-name-coding-system))
|
|
(let* ((coding-system-for-write 'no-conversion)
|
|
(exitcode (apply 'call-process
|
|
(car command)
|
|
nil
|
|
nil
|
|
nil
|
|
(append (cdr command)
|
|
(list archive ename)))))
|
|
(or (zerop exitcode)
|
|
(error "Updating was unsuccessful (%S)" exitcode))))
|
|
(archive-delete-local tmpfile))))
|
|
|
|
(defun archive-write-file (&optional file)
|
|
(save-excursion
|
|
(let ((coding-system-for-write 'no-conversion))
|
|
(write-region archive-proper-file-start (point-max)
|
|
(or file buffer-file-name) nil t)
|
|
(set-buffer-modified-p nil))
|
|
t))
|
|
;; -------------------------------------------------------------------------
|
|
;;; Section: Marking and unmarking.
|
|
|
|
(defun archive-flag-deleted (p &optional type)
|
|
"In archive mode, mark this member to be deleted from the archive.
|
|
With a prefix argument, mark that many files."
|
|
(interactive "p")
|
|
(or type (setq type ?D))
|
|
(beginning-of-line)
|
|
(let ((sign (if (>= p 0) +1 -1))
|
|
(modified (buffer-modified-p))
|
|
(inhibit-read-only t))
|
|
(while (not (zerop p))
|
|
(if (archive-get-descr t)
|
|
(progn
|
|
(delete-char 1)
|
|
(insert type)))
|
|
(forward-line sign)
|
|
(setq p (- p sign)))
|
|
(restore-buffer-modified-p modified))
|
|
(archive-next-line 0))
|
|
|
|
(defun archive-unflag (p)
|
|
"In archive mode, un-mark this member if it is marked to be deleted.
|
|
With a prefix argument, un-mark that many files forward."
|
|
(interactive "p")
|
|
(archive-flag-deleted p ?\s))
|
|
|
|
(defun archive-unflag-backwards (p)
|
|
"In archive mode, un-mark this member if it is marked to be deleted.
|
|
With a prefix argument, un-mark that many members backward."
|
|
(interactive "p")
|
|
(archive-flag-deleted (- p) ?\s))
|
|
|
|
(defun archive-unmark-all-files ()
|
|
"Remove all marks."
|
|
(interactive)
|
|
(let ((modified (buffer-modified-p))
|
|
(inhibit-read-only t))
|
|
(save-excursion
|
|
(goto-char archive-file-list-start)
|
|
(while (< (point) archive-file-list-end)
|
|
(or (= (following-char) ?\s)
|
|
(progn (delete-char 1) (insert ?\s)))
|
|
(forward-line 1)))
|
|
(restore-buffer-modified-p modified)))
|
|
|
|
(defun archive-mark (p)
|
|
"In archive mode, mark this member for group operations.
|
|
With a prefix argument, mark that many members.
|
|
Use \\[archive-unmark-all-files] to remove all marks."
|
|
(interactive "p")
|
|
(archive-flag-deleted p ?*))
|
|
|
|
(defun archive-get-marked (mark &optional default)
|
|
(let (files)
|
|
(save-excursion
|
|
(goto-char archive-file-list-start)
|
|
(while (< (point) archive-file-list-end)
|
|
(if (= (following-char) mark)
|
|
(setq files (cons (archive-get-descr) files)))
|
|
(forward-line 1)))
|
|
(or (nreverse files)
|
|
(and default
|
|
(list (archive-get-descr))))))
|
|
;; -------------------------------------------------------------------------
|
|
;;; Section: Operate
|
|
|
|
(defun archive-next-line (p)
|
|
(interactive "p")
|
|
(forward-line p)
|
|
(or (eobp)
|
|
(forward-char archive-file-name-indent)))
|
|
|
|
(defun archive-previous-line (p)
|
|
(interactive "p")
|
|
(archive-next-line (- p)))
|
|
|
|
(defun archive-chmod-entry (new-mode)
|
|
"Change the protection bits associated with all marked or this member.
|
|
The new protection bits can either be specified as an octal number or
|
|
as a relative change like \"g+rw\" as for chmod(2)."
|
|
(interactive "sNew mode (octal or relative): ")
|
|
(if archive-read-only (error "Archive is read-only"))
|
|
(let ((func (archive-name "chmod-entry")))
|
|
(if (fboundp func)
|
|
(progn
|
|
(funcall func new-mode (archive-get-marked ?* t))
|
|
(archive-resummarize))
|
|
(error "Setting mode bits is not supported for this archive type"))))
|
|
|
|
(defun archive-chown-entry (new-uid)
|
|
"Change the owner of all marked or this member."
|
|
(interactive "nNew uid: ")
|
|
(if archive-read-only (error "Archive is read-only"))
|
|
(let ((func (archive-name "chown-entry")))
|
|
(if (fboundp func)
|
|
(progn
|
|
(funcall func new-uid (archive-get-marked ?* t))
|
|
(archive-resummarize))
|
|
(error "Setting owner is not supported for this archive type"))))
|
|
|
|
(defun archive-chgrp-entry (new-gid)
|
|
"Change the group of all marked or this member."
|
|
(interactive "nNew gid: ")
|
|
(if archive-read-only (error "Archive is read-only"))
|
|
(let ((func (archive-name "chgrp-entry")))
|
|
(if (fboundp func)
|
|
(progn
|
|
(funcall func new-gid (archive-get-marked ?* t))
|
|
(archive-resummarize))
|
|
(error "Setting group is not supported for this archive type"))))
|
|
|
|
(defun archive-expunge ()
|
|
"Do the flagged deletions."
|
|
(interactive)
|
|
(let (files)
|
|
(save-excursion
|
|
(goto-char archive-file-list-start)
|
|
(while (< (point) archive-file-list-end)
|
|
(if (= (following-char) ?D)
|
|
(setq files (cons (aref (archive-get-descr) 0) files)))
|
|
(forward-line 1)))
|
|
(setq files (nreverse files))
|
|
(and files
|
|
(or (not archive-read-only)
|
|
(error "Archive is read-only"))
|
|
(or (yes-or-no-p (format "Really delete %d member%s? "
|
|
(length files)
|
|
(if (null (cdr files)) "" "s")))
|
|
(error "Operation aborted"))
|
|
(let ((archive (archive-maybe-copy (buffer-file-name)))
|
|
(expunger (archive-name "expunge")))
|
|
(if (fboundp expunger)
|
|
(funcall expunger archive files)
|
|
(archive-*-expunge archive files (symbol-value expunger)))
|
|
(archive-maybe-update nil)
|
|
(if archive-remote
|
|
(archive-resummarize)
|
|
(revert-buffer))))))
|
|
|
|
(defun archive-*-expunge (archive files command)
|
|
(apply 'call-process
|
|
(car command)
|
|
nil
|
|
nil
|
|
nil
|
|
(append (cdr command) (cons archive files))))
|
|
|
|
(defun archive-rename-entry (newname)
|
|
"Change the name associated with this entry in the archive file."
|
|
(interactive "sNew name: ")
|
|
(if archive-read-only (error "Archive is read-only"))
|
|
(if (string= newname "")
|
|
(error "Archive members may not be given empty names"))
|
|
(let ((func (archive-name "rename-entry"))
|
|
(descr (archive-get-descr)))
|
|
(if (fboundp func)
|
|
(progn
|
|
(funcall func
|
|
(encode-coding-string newname
|
|
archive-file-name-coding-system)
|
|
descr)
|
|
(archive-resummarize))
|
|
(error "Renaming is not supported for this archive type"))))
|
|
|
|
;; Revert the buffer and recompute the dired-like listing.
|
|
(defun archive-mode-revert (&optional _no-auto-save _no-confirm)
|
|
(let ((no (archive-get-lineno)))
|
|
(setq archive-files nil)
|
|
(let ((revert-buffer-function nil)
|
|
(coding-system-for-read 'no-conversion))
|
|
(revert-buffer t t))
|
|
(archive-mode)
|
|
(goto-char archive-file-list-start)
|
|
(archive-next-line no)))
|
|
|
|
(defun archive-undo ()
|
|
"Undo in an archive buffer.
|
|
This doesn't recover lost files, it just undoes changes in the buffer itself."
|
|
(interactive)
|
|
(let ((inhibit-read-only t))
|
|
(undo)))
|
|
;; -------------------------------------------------------------------------
|
|
;;; Section: Arc Archives
|
|
|
|
(defun archive-arc-summarize ()
|
|
(let ((p 1)
|
|
(totalsize 0)
|
|
(maxlen 8)
|
|
files
|
|
visual)
|
|
(while (and (< (+ p 29) (point-max))
|
|
(= (byte-after p) ?\C-z)
|
|
(> (byte-after (1+ p)) 0))
|
|
(let* ((namefld (buffer-substring (+ p 2) (+ p 2 13)))
|
|
(fnlen (or (string-match "\0" namefld) 13))
|
|
(efnname (decode-coding-string (substring namefld 0 fnlen)
|
|
archive-file-name-coding-system))
|
|
;; Convert to float to avoid overflow for very large files.
|
|
(csize (archive-l-e (+ p 15) 4 'float))
|
|
(moddate (archive-l-e (+ p 19) 2))
|
|
(modtime (archive-l-e (+ p 21) 2))
|
|
(ucsize (archive-l-e (+ p 25) 4 'float))
|
|
(fiddle (string= efnname (upcase efnname)))
|
|
(ifnname (if fiddle (downcase efnname) efnname))
|
|
(text (format " %8.0f %-11s %-8s %s"
|
|
ucsize
|
|
(archive-dosdate moddate)
|
|
(archive-dostime modtime)
|
|
ifnname)))
|
|
(setq maxlen (max maxlen fnlen)
|
|
totalsize (+ totalsize ucsize)
|
|
visual (cons (vector text
|
|
(- (length text) (length ifnname))
|
|
(length text))
|
|
visual)
|
|
files (cons (vector efnname ifnname fiddle nil (1- p))
|
|
files)
|
|
;; p needs to stay an integer, since we use it in char-after
|
|
;; above. Passing through `round' limits the compressed size
|
|
;; to most-positive-fixnum, but if the compressed size exceeds
|
|
;; that, we cannot visit the archive anyway.
|
|
p (+ p 29 (round csize)))))
|
|
(goto-char (point-min))
|
|
(let ((dash (concat "- -------- ----------- -------- "
|
|
(make-string maxlen ?-)
|
|
"\n")))
|
|
(insert "M Length Date Time File\n"
|
|
dash)
|
|
(archive-summarize-files (nreverse visual))
|
|
(insert dash
|
|
(format " %8.0f %d file%s"
|
|
totalsize
|
|
(length files)
|
|
(if (= 1 (length files)) "" "s"))
|
|
"\n"))
|
|
(apply 'vector (nreverse files))))
|
|
|
|
(defun archive-arc-rename-entry (newname descr)
|
|
(if (string-match "[:\\\\/]" newname)
|
|
(error "File names in arc files must not contain a directory component"))
|
|
(if (> (length newname) 12)
|
|
(error "File names in arc files are limited to 12 characters"))
|
|
(let ((name (concat newname (substring "\0\0\0\0\0\0\0\0\0\0\0\0\0"
|
|
(length newname))))
|
|
(inhibit-read-only t))
|
|
(save-restriction
|
|
(save-excursion
|
|
(widen)
|
|
(goto-char (+ archive-proper-file-start (aref descr 4) 2))
|
|
(delete-char 13)
|
|
(insert-unibyte name)))))
|
|
;; -------------------------------------------------------------------------
|
|
;;; Section: Lzh Archives
|
|
|
|
(defun archive-lzh-summarize (&optional start)
|
|
(let ((p (or start 1)) ;; 1 for .lzh, something further on for .exe
|
|
(totalsize 0)
|
|
(maxlen 8)
|
|
files
|
|
visual)
|
|
(while (progn (goto-char p) ;beginning of a base header.
|
|
(looking-at "\\(.\\|\n\\)\\(.\\|\n\\)-l[hz][0-9ds]-"))
|
|
(let* ((hsize (byte-after p)) ;size of the base header (level 0 and 1)
|
|
;; Convert to float to avoid overflow for very large files.
|
|
(csize (archive-l-e (+ p 7) 4 'float)) ;size of a compressed file to follow (level 0 and 2),
|
|
;size of extended headers + the compressed file to follow (level 1).
|
|
(ucsize (archive-l-e (+ p 11) 4 'float)) ;size of an uncompressed file.
|
|
(time1 (archive-l-e (+ p 15) 2)) ;date/time (MSDOS format in level 0, 1 headers
|
|
(time2 (archive-l-e (+ p 17) 2)) ;and UNIX format in level 2 header.)
|
|
(hdrlvl (byte-after (+ p 20))) ;header level
|
|
thsize ;total header size (base + extensions)
|
|
fnlen efnname osid fiddle ifnname width p2
|
|
neh ;beginning of next extension header (level 1 and 2)
|
|
mode modestr uid gid text dir prname
|
|
gname uname modtime moddate)
|
|
(if (= hdrlvl 3) (error "can't handle lzh level 3 header type"))
|
|
(when (or (= hdrlvl 0) (= hdrlvl 1))
|
|
(setq fnlen (byte-after (+ p 21))) ;filename length
|
|
(setq efnname (let ((str (buffer-substring (+ p 22) (+ p 22 fnlen)))) ;filename from offset 22
|
|
(decode-coding-string
|
|
str archive-file-name-coding-system)))
|
|
(setq p2 (+ p 22 fnlen))) ;
|
|
(if (= hdrlvl 1)
|
|
(setq neh (+ p2 3)) ;specific to level 1 header
|
|
(if (= hdrlvl 2)
|
|
(setq neh (+ p 24)))) ;specific to level 2 header
|
|
(if neh ;if level 1 or 2 we expect extension headers to follow
|
|
(let* ((ehsize (archive-l-e neh 2)) ;size of the extension header
|
|
(etype (byte-after (+ neh 2)))) ;extension type
|
|
(while (not (= ehsize 0))
|
|
(cond
|
|
((= etype 1) ;file name
|
|
(let ((i (+ neh 3)))
|
|
(while (< i (+ neh ehsize))
|
|
(setq efnname (concat efnname (char-to-string (byte-after i))))
|
|
(setq i (1+ i)))))
|
|
((= etype 2) ;directory name
|
|
(let ((i (+ neh 3)))
|
|
(while (< i (+ neh ehsize))
|
|
(setq dir (concat dir
|
|
(if (= (byte-after i)
|
|
255)
|
|
"/"
|
|
(char-to-string
|
|
(char-after i)))))
|
|
(setq i (1+ i)))))
|
|
((= etype 80) ;Unix file permission
|
|
(setq mode (archive-l-e (+ neh 3) 2)))
|
|
((= etype 81) ;UNIX file group/user ID
|
|
(progn (setq uid (archive-l-e (+ neh 3) 2))
|
|
(setq gid (archive-l-e (+ neh 5) 2))))
|
|
((= etype 82) ;UNIX file group name
|
|
(let ((i (+ neh 3)))
|
|
(while (< i (+ neh ehsize))
|
|
(setq gname (concat gname (char-to-string (char-after i))))
|
|
(setq i (1+ i)))))
|
|
((= etype 83) ;UNIX file user name
|
|
(let ((i (+ neh 3)))
|
|
(while (< i (+ neh ehsize))
|
|
(setq uname (concat uname (char-to-string (char-after i))))
|
|
(setq i (1+ i)))))
|
|
)
|
|
(setq neh (+ neh ehsize))
|
|
(setq ehsize (archive-l-e neh 2))
|
|
(setq etype (byte-after (+ neh 2))))
|
|
;;get total header size for level 1 and 2 headers
|
|
(setq thsize (- neh p))))
|
|
(if (= hdrlvl 0) ;total header size
|
|
(setq thsize hsize))
|
|
;; OS ID field not present in level 0 header, use code 0 "generic"
|
|
;; in that case as per lha program header.c get_header()
|
|
(setq osid (cond ((= hdrlvl 0) 0)
|
|
((= hdrlvl 1) (char-after (+ p 22 fnlen 2)))
|
|
((= hdrlvl 2) (char-after (+ p 23)))))
|
|
;; Filename fiddling must follow the lha program, otherwise the name
|
|
;; passed to "lha pq" etc won't match (which for an extract silently
|
|
;; results in no output). As of version 1.14i it goes from the OS ID,
|
|
;; - For 'M' MSDOS: msdos_to_unix_filename() downcases always, and
|
|
;; converts "\" to "/".
|
|
;; - For 0 generic: generic_to_unix_filename() downcases if there's
|
|
;; no lower case already present, and converts "\" to "/".
|
|
;; - For 'm' MacOS: macos_to_unix_filename() changes "/" to ":" and
|
|
;; ":" to "/"
|
|
(setq fiddle (cond ((= ?M osid) t)
|
|
((= 0 osid) (string= efnname (upcase efnname)))))
|
|
(setq ifnname (if fiddle (downcase efnname) efnname))
|
|
(setq prname (if dir (concat dir ifnname) ifnname))
|
|
(setq width (if prname (string-width prname) 0))
|
|
(setq modestr (if mode (archive-int-to-mode mode) "??????????"))
|
|
(setq moddate (if (= hdrlvl 2)
|
|
(archive-unixdate time1 time2) ;level 2 header in UNIX format
|
|
(archive-dosdate time2))) ;level 0 and 1 header in DOS format
|
|
(setq modtime (if (= hdrlvl 2)
|
|
(archive-unixtime time1 time2)
|
|
(archive-dostime time1)))
|
|
(setq text (if archive-alternate-display
|
|
(format " %8.0f %5S %5S %s"
|
|
ucsize
|
|
(or uid "?")
|
|
(or gid "?")
|
|
ifnname)
|
|
(format " %10s %8.0f %-11s %-8s %s"
|
|
modestr
|
|
ucsize
|
|
moddate
|
|
modtime
|
|
prname)))
|
|
(setq maxlen (max maxlen width)
|
|
totalsize (+ totalsize ucsize)
|
|
visual (cons (vector text
|
|
(- (length text) (length prname))
|
|
(length text))
|
|
visual)
|
|
files (cons (vector prname ifnname fiddle mode (1- p))
|
|
files))
|
|
(cond ((= hdrlvl 1)
|
|
;; p needs to stay an integer, since we use it in goto-char
|
|
;; above. Passing through `round' limits the compressed size
|
|
;; to most-positive-fixnum, but if the compressed size exceeds
|
|
;; that, we cannot visit the archive anyway.
|
|
(setq p (+ p hsize 2 (round csize))))
|
|
((or (= hdrlvl 2) (= hdrlvl 0))
|
|
(setq p (+ p thsize 2 (round csize)))))
|
|
))
|
|
(goto-char (point-min))
|
|
(let ((dash (concat (if archive-alternate-display
|
|
"- -------- ----- ----- "
|
|
"- ---------- -------- ----------- -------- ")
|
|
(make-string maxlen ?-)
|
|
"\n"))
|
|
(header (if archive-alternate-display
|
|
"M Length Uid Gid File\n"
|
|
"M Filemode Length Date Time File\n"))
|
|
(sumline (if archive-alternate-display
|
|
" %8.0f %d file%s"
|
|
" %8.0f %d file%s")))
|
|
(insert header dash)
|
|
(archive-summarize-files (nreverse visual))
|
|
(insert dash
|
|
(format sumline
|
|
totalsize
|
|
(length files)
|
|
(if (= 1 (length files)) "" "s"))
|
|
"\n"))
|
|
(apply 'vector (nreverse files))))
|
|
|
|
(defconst archive-lzh-alternate-display t)
|
|
|
|
(defun archive-lzh-extract (archive name)
|
|
(archive-extract-by-stdout archive name archive-lzh-extract))
|
|
|
|
(defun archive-lzh-resum (p count)
|
|
(let ((sum 0))
|
|
(while (> count 0)
|
|
(setq count (1- count)
|
|
sum (+ sum (byte-after p))
|
|
p (1+ p)))
|
|
(logand sum 255)))
|
|
|
|
(defun archive-lzh-rename-entry (newname descr)
|
|
(save-restriction
|
|
(save-excursion
|
|
(widen)
|
|
(let* ((p (+ archive-proper-file-start (aref descr 4)))
|
|
(oldhsize (byte-after p))
|
|
(oldfnlen (byte-after (+ p 21)))
|
|
(newfnlen (length newname))
|
|
(newhsize (+ oldhsize newfnlen (- oldfnlen)))
|
|
(inhibit-read-only t))
|
|
(if (> newhsize 255)
|
|
(error "The file name is too long"))
|
|
(goto-char (+ p 21))
|
|
(delete-char (1+ oldfnlen))
|
|
(insert-unibyte newfnlen newname)
|
|
(goto-char p)
|
|
(delete-char 2)
|
|
(insert-unibyte newhsize (archive-lzh-resum p newhsize))))))
|
|
|
|
(defun archive-lzh-ogm (newval files errtxt ofs)
|
|
(save-excursion
|
|
(save-restriction
|
|
(widen)
|
|
(dolist (fil files)
|
|
(let* ((p (+ archive-proper-file-start (aref fil 4)))
|
|
(hsize (byte-after p))
|
|
(fnlen (byte-after (+ p 21)))
|
|
(p2 (+ p 22 fnlen))
|
|
(creator (if (>= (- hsize fnlen) 24) (byte-after (+ p2 2)) 0))
|
|
(inhibit-read-only t))
|
|
(if (= creator ?U)
|
|
(progn
|
|
(or (numberp newval)
|
|
(setq newval (funcall newval (archive-l-e (+ p2 ofs) 2))))
|
|
(goto-char (+ p2 ofs))
|
|
(delete-char 2)
|
|
(insert-unibyte (logand newval 255) (lsh newval -8))
|
|
(goto-char (1+ p))
|
|
(delete-char 1)
|
|
(insert-unibyte (archive-lzh-resum (1+ p) hsize)))
|
|
(message "Member %s does not have %s field"
|
|
(aref fil 1) errtxt)))))))
|
|
|
|
(defun archive-lzh-chown-entry (newuid files)
|
|
(archive-lzh-ogm newuid files "an uid" 10))
|
|
|
|
(defun archive-lzh-chgrp-entry (newgid files)
|
|
(archive-lzh-ogm newgid files "a gid" 12))
|
|
|
|
(defun archive-lzh-chmod-entry (newmode files)
|
|
(archive-lzh-ogm
|
|
;; This should work even though newmode will be dynamically accessed.
|
|
(lambda (old) (archive-calc-mode old newmode t))
|
|
files "a unix-style mode" 8))
|
|
|
|
;; -------------------------------------------------------------------------
|
|
;;; 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.
|
|
;; If you do an "lha a" on a .exe for instance it renames and writes to a
|
|
;; plain .lzh.
|
|
|
|
(defun archive-lzh-exe-summarize ()
|
|
"Summarize the contents of an LZH self-extracting exe, for `archive-mode'."
|
|
|
|
;; Skip the initial executable code part and apply archive-lzh-summarize
|
|
;; to the archive part proper. The "-lh5-" etc regexp here for the start
|
|
;; is the same as in archive-find-type.
|
|
;;
|
|
;; The lha program (version 1.14i) does this in skip_msdos_sfx1_code() by
|
|
;; a similar scan. It looks for "..-l..-" plus for level 0 or 1 a test of
|
|
;; the header checksum, or level 2 a test of the "attribute" and size.
|
|
;;
|
|
(re-search-forward "..-l[hz][0-9ds]-" nil)
|
|
(archive-lzh-summarize (match-beginning 0)))
|
|
|
|
;; `archive-lzh-extract' runs "lha pq", and that works for .exe as well as
|
|
;; .lzh files
|
|
(defalias 'archive-lzh-exe-extract 'archive-lzh-extract
|
|
"Extract a member from an LZH self-extracting exe, for `archive-mode'.")
|
|
|
|
;; -------------------------------------------------------------------------
|
|
;;; Section: Zip Archives
|
|
|
|
(defun archive-zip-summarize ()
|
|
(goto-char (- (point-max) (- 22 18)))
|
|
(search-backward-regexp "[P]K\005\006")
|
|
(let ((p (+ (point-min) (archive-l-e (+ (point) 16) 4)))
|
|
(maxlen 8)
|
|
(totalsize 0)
|
|
files
|
|
visual)
|
|
(while (string= "PK\001\002" (buffer-substring p (+ p 4)))
|
|
(let* ((creator (byte-after (+ p 5)))
|
|
;; (method (archive-l-e (+ p 10) 2))
|
|
(modtime (archive-l-e (+ p 12) 2))
|
|
(moddate (archive-l-e (+ p 14) 2))
|
|
;; Convert to float to avoid overflow for very large files.
|
|
(ucsize (archive-l-e (+ p 24) 4 'float))
|
|
(fnlen (archive-l-e (+ p 28) 2))
|
|
(exlen (archive-l-e (+ p 30) 2))
|
|
(fclen (archive-l-e (+ p 32) 2))
|
|
(lheader (archive-l-e (+ p 42) 4))
|
|
(efnname (let ((str (buffer-substring (+ p 46) (+ p 46 fnlen))))
|
|
(decode-coding-string
|
|
str archive-file-name-coding-system)))
|
|
(isdir (and (= ucsize 0)
|
|
(string= (file-name-nondirectory efnname) "")))
|
|
(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
|
|
(if isdir (logior 16384 ?\111) 0)
|
|
(if (zerop
|
|
(logand 1 (byte-after (+ p 38))))
|
|
?\222 0)))
|
|
(t nil)))
|
|
(modestr (if mode (archive-int-to-mode mode) "??????????"))
|
|
(fiddle (and archive-zip-case-fiddle
|
|
(not (not (memq creator '(0 2 4 5 9))))
|
|
(string= (upcase efnname) efnname)))
|
|
(ifnname (if fiddle (downcase efnname) efnname))
|
|
(width (string-width ifnname))
|
|
(text (format " %10s %8.0f %-11s %-8s %s"
|
|
modestr
|
|
ucsize
|
|
(archive-dosdate moddate)
|
|
(archive-dostime modtime)
|
|
ifnname)))
|
|
(setq maxlen (max maxlen width)
|
|
totalsize (+ totalsize ucsize)
|
|
visual (cons (vector text
|
|
(- (length text) (length ifnname))
|
|
(length text))
|
|
visual)
|
|
files (cons (if isdir
|
|
nil
|
|
(vector efnname ifnname fiddle mode
|
|
(list (1- p) lheader)))
|
|
files)
|
|
p (+ p 46 fnlen exlen fclen))))
|
|
(goto-char (point-min))
|
|
(let ((dash (concat "- ---------- -------- ----------- -------- "
|
|
(make-string maxlen ?-)
|
|
"\n")))
|
|
(insert "M Filemode Length Date Time File\n"
|
|
dash)
|
|
(archive-summarize-files (nreverse visual))
|
|
(insert dash
|
|
(format " %8.0f %d file%s"
|
|
totalsize
|
|
(length files)
|
|
(if (= 1 (length files)) "" "s"))
|
|
"\n"))
|
|
(apply 'vector (nreverse files))))
|
|
|
|
(defun archive-zip-extract (archive name)
|
|
(cond
|
|
((member-ignore-case (car archive-zip-extract) '("pkunzip" "pkzip"))
|
|
(archive-*-extract archive name archive-zip-extract))
|
|
((equal (car archive-zip-extract) "7z")
|
|
(let ((archive-7z-extract archive-zip-extract))
|
|
(archive-7z-extract archive name)))
|
|
(t
|
|
(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 (unless w32-quote-process-args is nil), and file names
|
|
;; with wildcards in zip archives don't work there anyway.
|
|
;; FIXME: Does pkunzip need similar treatment?
|
|
(if (and (or (not (memq system-type '(windows-nt ms-dos)))
|
|
(and (boundp 'w32-quote-process-args)
|
|
(null w32-quote-process-args)))
|
|
(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
|
|
archive
|
|
descr
|
|
(if (aref descr 2) archive-zip-update-case archive-zip-update)))
|
|
|
|
(defun archive-zip-chmod-entry (newmode files)
|
|
(save-restriction
|
|
(save-excursion
|
|
(widen)
|
|
(dolist (fil files)
|
|
(let* ((p (+ archive-proper-file-start (car (aref fil 4))))
|
|
(creator (byte-after (+ p 5)))
|
|
(oldmode (aref fil 3))
|
|
(newval (archive-calc-mode oldmode newmode t))
|
|
(inhibit-read-only t))
|
|
(cond ((memq creator '(2 3)) ; Unix
|
|
(goto-char (+ p 40))
|
|
(delete-char 2)
|
|
(insert-unibyte (logand newval 255) (lsh newval -8)))
|
|
((memq creator '(0 5 6 7 10 11 15)) ; Dos etc.
|
|
(goto-char (+ p 38))
|
|
(insert-unibyte (logior (logand (byte-after (point)) 254)
|
|
(logand (logxor 1 (lsh newval -7)) 1)))
|
|
(delete-char 1))
|
|
(t (message "Don't know how to change mode for this member"))))
|
|
))))
|
|
;; -------------------------------------------------------------------------
|
|
;;; Section: Zoo Archives
|
|
|
|
(defun archive-zoo-summarize ()
|
|
(let ((p (1+ (archive-l-e 25 4)))
|
|
(maxlen 8)
|
|
(totalsize 0)
|
|
files
|
|
visual)
|
|
(while (and (string= "\334\247\304\375" (buffer-substring p (+ p 4)))
|
|
(> (archive-l-e (+ p 6) 4) 0))
|
|
(let* ((next (1+ (archive-l-e (+ p 6) 4)))
|
|
(moddate (archive-l-e (+ p 14) 2))
|
|
(modtime (archive-l-e (+ p 16) 2))
|
|
;; Convert to float to avoid overflow for very large files.
|
|
(ucsize (archive-l-e (+ p 20) 4 'float))
|
|
(namefld (buffer-substring (+ p 38) (+ p 38 13)))
|
|
(dirtype (byte-after (+ p 4)))
|
|
(lfnlen (if (= dirtype 2) (byte-after (+ p 56)) 0))
|
|
(ldirlen (if (= dirtype 2) (byte-after (+ p 57)) 0))
|
|
(fnlen (or (string-match "\0" namefld) 13))
|
|
(efnname (let ((str
|
|
(concat
|
|
(if (> ldirlen 0)
|
|
(concat (buffer-substring
|
|
(+ p 58 lfnlen)
|
|
(+ p 58 lfnlen ldirlen -1))
|
|
"/")
|
|
"")
|
|
(if (> lfnlen 0)
|
|
(buffer-substring (+ p 58)
|
|
(+ p 58 lfnlen -1))
|
|
(substring namefld 0 fnlen)))))
|
|
(decode-coding-string
|
|
str archive-file-name-coding-system)))
|
|
(fiddle (and (= lfnlen 0) (string= efnname (upcase efnname))))
|
|
(ifnname (if fiddle (downcase efnname) efnname))
|
|
(width (string-width ifnname))
|
|
(text (format " %8.0f %-11s %-8s %s"
|
|
ucsize
|
|
(archive-dosdate moddate)
|
|
(archive-dostime modtime)
|
|
ifnname)))
|
|
(setq maxlen (max maxlen width)
|
|
totalsize (+ totalsize ucsize)
|
|
visual (cons (vector text
|
|
(- (length text) (length ifnname))
|
|
(length text))
|
|
visual)
|
|
files (cons (vector efnname ifnname fiddle nil (1- p))
|
|
files)
|
|
p next)))
|
|
(goto-char (point-min))
|
|
(let ((dash (concat "- -------- ----------- -------- "
|
|
(make-string maxlen ?-)
|
|
"\n")))
|
|
(insert "M Length Date Time File\n"
|
|
dash)
|
|
(archive-summarize-files (nreverse visual))
|
|
(insert dash
|
|
(format " %8.0f %d file%s"
|
|
totalsize
|
|
(length files)
|
|
(if (= 1 (length files)) "" "s"))
|
|
"\n"))
|
|
(apply 'vector (nreverse files))))
|
|
|
|
(defun archive-zoo-extract (archive name)
|
|
(archive-extract-by-stdout archive name archive-zoo-extract))
|
|
|
|
;; -------------------------------------------------------------------------
|
|
;;; Section: Rar Archives
|
|
|
|
(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 ()))
|
|
(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")
|
|
(while (looking-at (concat " \\(.*\\)\n" ;Name.
|
|
;; Size ; Packed.
|
|
" +\\([0-9]+\\) +[0-9]+"
|
|
;; Ratio ; Date'
|
|
" +\\([0-9%]+\\) +\\([-0-9]+\\)"
|
|
;; Time ; Attr.
|
|
" +\\([0-9:]+\\) +[^ \n]\\{6,10\\}"
|
|
;; 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 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)))))
|
|
|
|
;;; 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: 7z Archives
|
|
|
|
(defun archive-7z-summarize ()
|
|
(let ((maxname 10)
|
|
(maxsize 5)
|
|
(file buffer-file-name)
|
|
(files ()))
|
|
(with-temp-buffer
|
|
(call-process "7z" nil t nil "l" "-slt" file)
|
|
(goto-char (point-min))
|
|
;; Four dashes start the meta info section that should be skipped.
|
|
;; Archive members start with more than four dashes.
|
|
(re-search-forward "^-----+\n")
|
|
(while (re-search-forward "^Path = \\(.*\\)\n" nil t)
|
|
(goto-char (match-end 0))
|
|
(let ((name (match-string 1))
|
|
(size (save-excursion
|
|
(and (re-search-forward "^Size = \\(.*\\)\n")
|
|
(match-string 1))))
|
|
(time (save-excursion
|
|
(and (re-search-forward "^Modified = \\(.*\\)\n")
|
|
(match-string 1)))))
|
|
(if (> (length name) maxname) (setq maxname (length name)))
|
|
(if (> (length size) maxsize) (setq maxsize (length size)))
|
|
(push (vector name name nil nil time nil nil size)
|
|
files))))
|
|
(setq files (nreverse files))
|
|
(goto-char (point-min))
|
|
(let* ((format (format " %%%ds %%s %%s" maxsize))
|
|
(sep (format format (make-string maxsize ?-) "-------------------" ""))
|
|
(column (length sep)))
|
|
(insert (format format "Size " "Date Time " " Filename") "\n")
|
|
(insert sep (make-string maxname ?-) "\n")
|
|
(archive-summarize-files (mapcar (lambda (desc)
|
|
(let ((text
|
|
(format format
|
|
(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-7z-extract (archive name)
|
|
(let ((tmpfile (make-temp-file "7z-stderr")))
|
|
;; 7z doesn't provide a `quiet' option to suppress non-essential
|
|
;; stderr messages. So redirect stderr to a temp file and display it
|
|
;; in the echo area when it contains error messages.
|
|
(prog1 (archive-extract-by-stdout
|
|
archive name archive-7z-extract tmpfile)
|
|
(with-temp-buffer
|
|
(insert-file-contents tmpfile)
|
|
(unless (search-forward "Everything is Ok" nil t)
|
|
(message "%s" (buffer-string)))
|
|
(delete-file tmpfile)))))
|
|
|
|
(defun archive-7z-write-file-member (archive descr)
|
|
(archive-*-write-file-member
|
|
archive
|
|
descr
|
|
archive-7z-update))
|
|
|
|
;; -------------------------------------------------------------------------
|
|
;;; 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
|
|
(provide 'archive-mode)
|
|
|
|
(provide 'arc-mode)
|
|
|
|
;;; arc-mode.el ends here
|