lisp/gnus/nndir.el

   1 ;;; nndir.el --- single directory newsgroup access for Gnus
   2
   3 ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
   4 ;;   2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
   5
   6 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
   7 ;; Keywords: news
   8
   9 ;; This file is part of GNU Emacs.
  10
  11 ;; GNU Emacs is free software: you can redistribute it and/or modify
  12 ;; it under the terms of the GNU General Public License as published by
  13 ;; the Free Software Foundation, either version 3 of the License, or
  14 ;; (at your option) any later version.
  15
  16 ;; GNU Emacs is distributed in the hope that it will be useful,
  17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ;; GNU General Public License for more details.
  20
  21 ;; You should have received a copy of the GNU General Public License
  22 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  23
  24 ;;; Commentary:
  25
  26 ;;; Code:
  27
  28 (require 'nnheader)
  29 (require 'nnmh)
  30 (require 'nnml)
  31 (require 'nnoo)
  32 (eval-when-compile (require 'cl))
  33
  34 (nnoo-declare nndir
  35   nnml nnmh)
  36
  37 (defvoo nndir-directory nil
  38   "Where nndir will look for groups."
  39   nnml-current-directory nnmh-current-directory)
  40
  41 (defvoo nndir-nov-is-evil nil
  42   "*Non-nil means that nndir will never retrieve NOV headers."
  43   nnml-nov-is-evil)
  44
  45 \f
  46
  47 (defvoo nndir-current-group "" nil nnml-current-group nnmh-current-group)
  48 (defvoo nndir-top-directory nil nil nnml-directory nnmh-directory)
  49 (defvoo nndir-get-new-mail nil nil nnml-get-new-mail nnmh-get-new-mail)
  50
  51 (defvoo nndir-status-string "" nil nnmh-status-string)
  52 (defconst nndir-version "nndir 1.0")
  53
  54 \f
  55
  56 ;;; Interface functions.
  57
  58 (nnoo-define-basics nndir)
  59
  60 (deffoo nndir-open-server (server &optional defs)
  61   (setq nndir-directory
  62         (or (cadr (assq 'nndir-directory defs))
  63             server))
  64   (unless (assq 'nndir-directory defs)
  65     (push `(nndir-directory ,server) defs))
  66   (push `(nndir-current-group
  67           ,(file-name-nondirectory (directory-file-name nndir-directory)))
  68         defs)
  69   (push `(nndir-top-directory
  70           ,(file-name-directory (directory-file-name nndir-directory)))
  71         defs)
  72   (nnoo-change-server 'nndir server defs)
  73   (let (err)
  74     (cond
  75      ((not (condition-case arg
  76                (file-exists-p nndir-directory)
  77              (ftp-error (setq err (format "%s" arg)))))
  78       (nndir-close-server)
  79       (nnheader-report
  80        'nndir (or err "No such file or directory: %s" nndir-directory)))
  81      ((not (file-directory-p (file-truename nndir-directory)))
  82       (nndir-close-server)
  83       (nnheader-report 'nndir "Not a directory: %s" nndir-directory))
  84      (t
  85       (nnheader-report 'nndir "Opened server %s using directory %s"
  86                        server nndir-directory)
  87       t))))
  88
  89 (nnoo-map-functions nndir
  90   (nnml-retrieve-headers 0 nndir-current-group 0 0)
  91   (nnml-request-article 0 nndir-current-group 0 0)
  92   (nnmh-request-group nndir-current-group 0 0)
  93   (nnml-close-group nndir-current-group 0)
  94   (nnml-request-list (nnoo-current-server 'nndir) nndir-directory)
  95   (nnml-request-newsgroups (nnoo-current-server 'nndir) nndir-directory))
  96
  97 (provide 'nndir)
  98
  99 ;; arch-tag: 56f09f68-0e4e-4816-818a-df80b4a394c8
 100 ;;; nndir.el ends here