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[emacs.git] / lisp / gnus / nndir.el
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1 ;;; nndir.el --- single directory newsgroup access for Gnus
3 ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000
4 ;; Free Software Foundation, Inc.
6 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
7 ;; Keywords: news
9 ;; This file is part of GNU Emacs.
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 2, or (at your option)
14 ;; any later version.
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.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with GNU Emacs; see the file COPYING. If not, write to the
23 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
24 ;; Boston, MA 02111-1307, USA.
26 ;;; Commentary:
28 ;;; Code:
30 (require 'nnheader)
31 (require 'nnmh)
32 (require 'nnml)
33 (require 'nnoo)
34 (eval-when-compile (require 'cl))
36 (nnoo-declare nndir
37 nnml nnmh)
39 (defvoo nndir-directory nil
40 "Where nndir will look for groups."
41 nnml-current-directory nnmh-current-directory)
43 (defvoo nndir-nov-is-evil nil
44 "*Non-nil means that nndir will never retrieve NOV headers."
45 nnml-nov-is-evil)
49 (defvoo nndir-current-group "" nil nnml-current-group nnmh-current-group)
50 (defvoo nndir-top-directory nil nil nnml-directory nnmh-directory)
51 (defvoo nndir-get-new-mail nil nil nnml-get-new-mail nnmh-get-new-mail)
53 (defvoo nndir-status-string "" nil nnmh-status-string)
54 (defconst nndir-version "nndir 1.0")
58 ;;; Interface functions.
60 (nnoo-define-basics nndir)
62 (deffoo nndir-open-server (server &optional defs)
63 (setq nndir-directory
64 (or (cadr (assq 'nndir-directory defs))
65 server))
66 (unless (assq 'nndir-directory defs)
67 (push `(nndir-directory ,server) defs))
68 (push `(nndir-current-group
69 ,(file-name-nondirectory (directory-file-name nndir-directory)))
70 defs)
71 (push `(nndir-top-directory
72 ,(file-name-directory (directory-file-name nndir-directory)))
73 defs)
74 (nnoo-change-server 'nndir server defs)
75 (let (err)
76 (cond
77 ((not (condition-case arg
78 (file-exists-p nndir-directory)
79 (ftp-error (setq err (format "%s" arg)))))
80 (nndir-close-server)
81 (nnheader-report
82 'nndir (or err "No such file or directory: %s" nndir-directory)))
83 ((not (file-directory-p (file-truename nndir-directory)))
84 (nndir-close-server)
85 (nnheader-report 'nndir "Not a directory: %s" nndir-directory))
87 (nnheader-report 'nndir "Opened server %s using directory %s"
88 server nndir-directory)
89 t))))
91 (nnoo-map-functions nndir
92 (nnml-retrieve-headers 0 nndir-current-group 0 0)
93 (nnml-request-article 0 nndir-current-group 0 0)
94 (nnmh-request-group nndir-current-group 0 0)
95 (nnml-close-group nndir-current-group 0)
96 (nnml-request-list (nnoo-current-server 'nndir) nndir-directory)
97 (nnml-request-newsgroups (nnoo-current-server 'nndir) nndir-directory))
99 (provide 'nndir)
101 ;;; nndir.el ends here