mdw@git.distorted.org.uk Git - profile/blob - dot/gnus.el

   1 ;;; -*- mode: emacs-lisp; coding: utf-8 -*-
   2 ;;;
   3 ;;; GNUS configuration
   4 ;;;
   5 ;;; (c) 2009 Mark Wooding
   6 ;;;
   7
   8 ;;;----- Licensing notice ---------------------------------------------------
   9 ;;;
  10 ;;; This program is free software; you can redistribute it and/or modify
  11 ;;; it under the terms of the GNU General Public License as published by
  12 ;;; the Free Software Foundation; either version 2 of the License, or
  13 ;;; (at your option) any later version.
  14 ;;;
  15 ;;; This program is distributed in the hope that it will be useful,
  16 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;;; GNU General Public License for more details.
  19 ;;;
  20 ;;; You should have received a copy of the GNU General Public License
  21 ;;; along with this program; if not, write to the Free Software
  22 ;;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  23
  24 ;;;--------------------------------------------------------------------------
  25 ;;; General Gnus preferences.
  26
  27 ;; Divide the main groups list by topics.
  28 (add-hook 'gnus-group-mode-hook 'gnus-topic-mode)
  29 (setq gnus-subscribe-newsgroup-method 'gnus-subscribe-topics)
  30
  31 ;; Use hacky movemail program to move mail.
  32 (setq mail-source-movemail-program "~/bin/movemail-hack")
  33
  34 ;; Don't force use of a full window.
  35 (setq gnus-use-full-window nil)
  36
  37 ;; Display a slrn-like tree view in the summary window.
  38 (setq gnus-use-trees nil)
  39 (setq gnus-summary-make-false-root 'dummy)
  40 (setq gnus-summary-line-format "%U%R%z%4L %(%[%-16,16f%]%): %B %s\n"
  41       gnus-summary-dummy-line-format "        %(%[----------------%]%): * %S\n")
  42 (setq gnus-sum-thread-tree-root ">"
  43       gnus-sum-thread-tree-false-root ">"
  44       gnus-sum-thread-tree-single-indent "="
  45       gnus-sum-thread-tree-indent "  ")
  46 (if (memq (coding-system-get (terminal-coding-system) 'mime-charset)
  47           '(nil utf-8))
  48     (setq gnus-sum-thread-tree-leaf-with-other "├─>"
  49           gnus-sum-thread-tree-vertical        "│ "
  50           gnus-sum-thread-tree-single-leaf     "╰─>")
  51   (setq gnus-sum-thread-tree-leaf-with-other   "|->"
  52         gnus-sum-thread-tree-vertical          "| "
  53         gnus-sum-thread-tree-single-leaf       "`->"))
  54
  55 ;; Sort threads in a useful way.
  56 (setq gnus-thread-sort-functions
  57       '(gnus-thread-sort-by-number
  58         gnus-thread-sort-by-subject
  59         gnus-thread-sort-by-total-score))
  60
  61 ;; Configure the crypto.
  62 (setq mm-verify-option 'known
  63       mm-sign-option 'guided
  64       mm-decrypt-option 'never)
  65
  66 ;; Tracking available groups.  These should work for sane servers, but maybe
  67 ;; they'll need hacking in the local file.
  68 (setq gnus-save-killed-list nil
  69       gnus-check-bogus-newsgroups nil
  70       gnus-read-active-file 'ask-server)
  71
  72 ;; Use one article buffer per group.
  73 (setq gnus-single-article-buffer nil)
  74
  75 ;; Don't expand threads on initial opening.
  76 (setq gnus-thread-hide-subtree t)
  77
  78 ;; Don't use strange icons instead of traditional smileys.
  79 (setq gnus-treat-display-smileys nil)
  80
  81 ;; Fairly large numbers of articles are OK; don't bother warning me.
  82 (setq gnus-large-newsgroup 500)
  83
  84 ;; When splitting articles, crossposting is a reasonable thing to do.
  85 (setq nnimap-split-crosspost t)
  86
  87 ;; We may have the misfortune to talk to an Exchange server.
  88 (setq imap-enable-exchange-bug-workaround t)
  89
  90 ;; Save articles in mbox format by default, of course, and save an entire
  91 ;; batch with the same name.
  92 (setq gnus-prompt-before-saving t
  93       gnus-default-article-saver 'gnus-summary-save-in-mail)
  94
  95 ;; Clean up properly when closing the summary.
  96 (defadvice gnus-summary-exit (before mdw-kill-debris compile activate)
  97   (gnus-summary-expand-window))
  98
  99 ;; Configure article display a bit.
 100 (defun mdw-gnus-article-setup ()
 101   (setq truncate-lines nil
 102         truncate-partial-width-windows nil
 103         word-wrap t
 104         wrap-prefix (concat (propertize "..." 'face 'mdw-ellipsis-face)
 105                             " ")))
 106 (add-hook 'gnus-article-mode-hook #'mdw-gnus-article-setup)
 107
 108 ;; Don't expire articles on selection if they're alread read.  This provides
 109 ;; a handy way to prevent expiry, and actually forcing expiry isn't
 110 ;; significantly harder.
 111 (remove-hook 'gnus-mark-article-hook
 112              'gnus-summary-mark-read-and-unread-as-read)
 113 (add-hook 'gnus-mark-article-hook 'gnus-summary-mark-unread-as-read)
 114
 115 ;; Leave an oubliette level 7 for broken things which look like mailboxes.
 116 ;; Otherwise Gnus keeps on resurrecting them and later realising that they're
 117 ;; bogus.
 118 (setq gnus-level-unsubscribed 6)
 119
 120 ;; Reconfigure the `nnmail-split-fancy' syntax table to be less mad.
 121 (setq nnmail-split-fancy-syntax-table
 122       (let ((table (make-syntax-table)))
 123
 124         ;; This is from upstream.  I don't know what it's for.
 125         (modify-syntax-entry ?% "." table)
 126
 127         ;; Email addresses are often wrapped in `<...>', so don't consider
 128         ;; those to be part of the address.
 129         (modify-syntax-entry ?< "(>" table)
 130         (modify-syntax-entry ?> ")<" table)
 131
 132         ;; Done.
 133         table))
 134
 135 ;;;--------------------------------------------------------------------------
 136 ;;; Magic for sending mail the correct way.
 137
 138 (defvar mdw-send-mail-alist nil
 139   "An alist containing ways of sending email.
 140 The keys are symbols naming mail-sending methods.  The values are
 141 alists mapping Lisp variable names to values which will be bound
 142 around a call to the underlying `send-mail-function'.  See
 143 `mdw-message-send-it'.")
 144
 145 (defvar mdw-guess-send-mail-alist nil
 146   "An alist for guessing the right way to send mail from a `From' address.
 147 The keys are (Emacs-style) regular expressions.  The values are
 148 strings naming mail-sending methods, to be used if there is no
 149 `mdw-send-mail-header-name' mail header.")
 150
 151 (defvar mdw-send-mail-header-name "X-mdw-Send-Mail"
 152   "Mail header used to override the mail-sending method.
 153 If a header with this name exists, then `mdw-message-send-it'
 154 will look its value up in `mdw-send-mail-alist' to find out how
 155 to send the message.  The idea is that you can set this header
 156 from `gnus-posting-styles'.  The header will be stripped on
 157 sending.")
 158
 159 (defvar mdw-default-send-mail-method nil
 160   "The name of the default mail-sending method.")
 161
 162 (defun mdw-message-send-it ()
 163   "Send mail using the appropriate mail sending method.
 164 Firstly, a mail-sending method name is determined.  If
 165 `mdw-send-mail-header-name' has a non-nil value, and a header
 166 with this name exists in the message being sent, then its value
 167 is used as the name.  Otherwise, the email address from the
 168 `From' header is matched against the named of the association in
 169 `mdw-guess-send-mail-alist', and if any of them match then the
 170 corresponding value is used as the name.  Otherwise, the value of
 171 `mdw-default-send-mail-method' is used.
 172
 173 The name is then looked up in `mdw-send-mail-alist' to find an
 174 alist of temporary variable bindings; an error is reported if no
 175 matching entry is found.  The variables are temporarily bound to
 176 their corresponding values, and the (possibly freshly rebound)
 177 `send-mail-function' is invoked with no parameters.
 178
 179 If the method name is `nil', then `send-mail-function' is simply
 180 invoked without doing anything else very special.  This can
 181 therefore be left as a useful default, if it's generally the
 182 right thing."
 183
 184   (let* ((method-name
 185           (or
 186
 187            ;; Firstly, if there's an explicit header in the message, then
 188            ;; we'd better use that.
 189            (let ((method (message-fetch-field mdw-send-mail-header-name)))
 190              (and method (intern method)))
 191
 192            ;; Look up the sender's address in the guess list.
 193            (let* ((sender (some #'message-fetch-field
 194                                 '("resent-sender" "resent-from"
 195                                   "sender" "from")))
 196                   (addr (cadr (mail-extract-address-components sender)))
 197                   (alist mdw-guess-send-mail-alist)
 198                   assoc)
 199              (catch 'found
 200                (while alist
 201                  (setq assoc (pop alist))
 202                  (when (string-match (car assoc) addr)
 203                    (throw 'found (cdr assoc))))
 204                nil))
 205
 206            ;; Otherwise use the default.
 207            mdw-default-send-mail-method))
 208
 209          (method (and method-name
 210                       (let ((assoc (assq method-name mdw-send-mail-alist)))
 211                         (if assoc (cdr assoc)
 212                           (error "Unknown send-mail method `%s'."
 213                                  method-name))))))
 214
 215     ;; Bind the appropriate variables.
 216     (progv
 217         (mapcar #'car method)
 218         (mapcar #'cdr method)
 219
 220       ;; Make a copy of the buffer and strip out our magic header.  (If the
 221       ;; message send fails, it would be annoying to have lost the magic
 222       ;; token which tells us how to retry properly.)
 223       (let ((buf (current-buffer)))
 224         (with-temp-buffer
 225           (insert-buffer buf)
 226           (message-remove-header mdw-send-mail-header-name)
 227           (funcall send-mail-function))))))
 228
 229 (setq message-send-mail-function 'mdw-message-send-it)
 230
 231 ;;;--------------------------------------------------------------------------
 232 ;;; Local configuration.
 233
 234 ;; Fetching news from the local news server seems sensible.
 235 (setq gnus-select-method
 236       (let ((server (mdw-config 'nntp-server)))
 237         (if server
 238             `(nntp ,server)
 239           '(nnnil ""))))
 240
 241 ;; Now load a local configuration file.
 242 (load "~/.gnus-local.el")
 243
 244 ;;;----- That's all, folks --------------------------------------------------