;; edict-update.el --- Dictionary update functions for edict.el
;; Copyright (C) 2002 Free Software Foundation, Inc.
;; Author: Stephen J. Turnbull <email@example.com>
;; Keywords: mule, edict, dictionary
;; Version: 0.5
;; Created: 27 January 2002
;; Last Update: 27 January 2002
;; Maintainer: Stephen J. Turnbull <firstname.lastname@example.org>
;; This file is part of XEmacs.
;; XEmacs is free software; you can redistribute it and/or modify it
;; under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your
;; option) any later version.
;; XEmacs is distributed in the hope that it will be useful, but
;; WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;; General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with XEmacs; if not, write to the Free Software Foundation,
;; Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
;; Functions to update EDICT dictionaries and to report private dictionary
;; words upstream.
;; Customize `edict-dictionary-path', `edict-dictionaries',
;; `edict-update-file-list', `edict-update-staging',
;; `edict-update-local-mirror', and `edict-update-archive-url'
;; appropriately. Then "M-x edict-update RET" and if you're lucky,
;; you're done.
;; 1. Use the package transport stuff I wrote; test it here.
;; 2. Think carefully about the process of updating packages. The
;; problem is that there should be a difference between updates
;; done by administrators and updates done by ordinary users. The
;; administrators should update the main hierarchies, while the
;; users should update their personal packages. This probably
;; involves checking for write permission and/or ownership on the
;; package hierarchy and possibly some kind of "su.el"
(require 'edict) ; for dictionary list and path
;;; User customization
(defgroup edict-update nil
"Customization of functions used to keep your EDICT current."
(defcustom edict-update-file-list nil
"List of files to update.
If nil, default to the value of `edict-dictionaries'."
;; #### should default to something else for package administrators,
;; like all known edict dictionaries.
:type '(repeat file)
(defcustom edict-update-staging "/tmp/edict"
"Basename of temporary directory for staging EDICT dictionary archives.
Should not end in a slash, because it will be used to generate a unique
name for a directory to be created. The directory is deleted after use.
If `edict-update-local-mirror' is non-nil, this variable is ignored."
:type 'file ; not directory
(defcustom edict-update-local-mirror nil
"Path to a local mirror of the EDICT dictionary archives.
Files downloaded here are persistent. This location takes precedence
:type '(choice directory
(const :tag "none" nil))
"URL pointing to a host and directory serving EDICT dictionaries.
Should end with a slash.
Default is Jim Breen's Nihongo Archive at Monash University,
;; WE DEMAND AN URL WIDGET!!
"Map dictionaries to archive name to download.
This isn't really a user customization (should be constant over time and
for different mirrors), but made customizable for convenience."
:type '(repeat (list string string))
;; #### Evile temporary hack
(defvar edict-update-wget-options "-N")
(defun edict-update ()
"Update edict dictionaries from archives on the 'Net.
Customize `edict-dictionary-path', `edict-dictionaries',
`edict-update-local-mirror', and `edict-update-archive-url' to
determine how and where to download and install.
#### Currently not at all robust, requires wget on the path."
(let ((stage (edict-update-setup-stage))
;; #### walk down the path looking for writables, confirm
(destination (file-name-as-directory (car edict-dictionary-path)))
(files (or edict-update-file-list edict-dictionaries)))
;; #### provide for alternative transports
(mapc (lambda (source)
(when (member (first source) files)
;; #### this is very fragile
(concat "cd " stage "; "
"wget " edict-update-wget-options " "
edict-update-archive-url (second source)))
(concat "cd " stage "; "
(if edict-update-local-mirror "cp " "mv ")
(second source) " " destination))
(when (string-match "\\.gz$" (second source))
(concat "cd " destination "; " "gunzip " (second source))))))
;; staging area utilities
(defun edict-update-setup-stage ()
"Determine staging directory, and create it if needed."
;; #### do proper temporary creation
(cond ((not (file-exists-p edict-update-local-mirror))
(make-directory edict-update-local-mirror t))
((and (file-directory-p edict-update-local-mirror)
(not (file-writable-p edict-update-local-mirror)))
(error 'file-error "not writable by you"
((not (file-directory-p edict-update-local-mirror))
(error 'file-already-exists "is not a directory"
(if (file-exists-p edict-update-staging)
(error "%s exists, move it out of the way, please"
(make-directory edict-update-staging t)
(defun edict-update-cleanup-stage ()
"Remove temporary staging area.
Files should already have been removed."
;;; edict-update.el ends here