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1 ;;; nnfolder.el --- mail folder access for Gnus
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2 ;; Copyright (C) 1995,96,97 Free Software Foundation, Inc.
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3
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4 ;; Author: Scott Byer <byer@mv.us.adobe.com>
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5 ;; Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
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6 ;; Masanobu UMEDA <umerin@flab.flab.fujitsu.junet>
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7 ;; Keywords: mail
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8
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9 ;; This file is part of GNU Emacs.
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10
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11 ;; GNU Emacs is free software; you can redistribute it and/or modify
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12 ;; it under the terms of the GNU General Public License as published by
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13 ;; the Free Software Foundation; either version 2, or (at your option)
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14 ;; any later version.
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15
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16 ;; GNU Emacs is distributed in the hope that it will be useful,
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17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19 ;; GNU General Public License for more details.
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20
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21 ;; You should have received a copy of the GNU General Public License
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22 ;; along with GNU Emacs; see the file COPYING. If not, write to the
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23 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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24 ;; Boston, MA 02111-1307, USA.
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25
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26 ;;; Commentary:
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27
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28 ;;; Code:
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29
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30 (require 'nnheader)
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31 (require 'message)
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32 (require 'nnmail)
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33 (require 'nnoo)
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34 (require 'cl)
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35 (require 'gnus-util)
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36
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37 (nnoo-declare nnfolder)
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38
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39 (defvoo nnfolder-directory (expand-file-name message-directory)
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40 "The name of the nnfolder directory.")
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41
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42 (defvoo nnfolder-active-file
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43 (nnheader-concat nnfolder-directory "active")
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44 "The name of the active file.")
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45
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46 ;; I renamed this variable to something more in keeping with the general GNU
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47 ;; style. -SLB
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48
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49 (defvoo nnfolder-ignore-active-file nil
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50 "If non-nil, causes nnfolder to do some extra work in order to determine
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51 the true active ranges of an mbox file. Note that the active file is still
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52 saved, but it's values are not used. This costs some extra time when
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53 scanning an mbox when opening it.")
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54
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55 (defvoo nnfolder-distrust-mbox nil
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56 "If non-nil, causes nnfolder to not trust the user with respect to
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57 inserting unaccounted for mail in the middle of an mbox file. This can greatly
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58 slow down scans, which now must scan the entire file for unmarked messages.
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59 When nil, scans occur forward from the last marked message, a huge
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60 time saver for large mailboxes.")
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61
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62 (defvoo nnfolder-newsgroups-file
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63 (concat (file-name-as-directory nnfolder-directory) "newsgroups")
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64 "Mail newsgroups description file.")
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65
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66 (defvoo nnfolder-get-new-mail t
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67 "If non-nil, nnfolder will check the incoming mail file and split the mail.")
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68
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69 (defvoo nnfolder-prepare-save-mail-hook nil
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70 "Hook run narrowed to an article before saving.")
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71
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72 (defvoo nnfolder-save-buffer-hook nil
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73 "Hook run before saving the nnfolder mbox buffer.")
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74
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75 (defvoo nnfolder-inhibit-expiry nil
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76 "If non-nil, inhibit expiry.")
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77
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78
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79
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80 (defconst nnfolder-version "nnfolder 1.0"
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81 "nnfolder version.")
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82
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83 (defconst nnfolder-article-marker "X-Gnus-Article-Number: "
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84 "String used to demarcate what the article number for a message is.")
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85
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86 (defvoo nnfolder-current-group nil)
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87 (defvoo nnfolder-current-buffer nil)
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88 (defvoo nnfolder-status-string "")
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89 (defvoo nnfolder-group-alist nil)
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90 (defvoo nnfolder-buffer-alist nil)
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91 (defvoo nnfolder-scantime-alist nil)
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92
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93
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94
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95 ;;; Interface functions
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96
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97 (nnoo-define-basics nnfolder)
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98
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99 (deffoo nnfolder-retrieve-headers (articles &optional group server fetch-old)
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100 (save-excursion
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101 (set-buffer nntp-server-buffer)
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102 (erase-buffer)
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103 (let (article art-string start stop)
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104 (nnfolder-possibly-change-group group server)
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105 (when nnfolder-current-buffer
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106 (set-buffer nnfolder-current-buffer)
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107 (goto-char (point-min))
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108 (if (stringp (car articles))
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109 'headers
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110 (while articles
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111 (setq article (car articles))
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112 (setq art-string (nnfolder-article-string article))
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113 (set-buffer nnfolder-current-buffer)
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114 (when (or (search-forward art-string nil t)
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115 ;; Don't search the whole file twice! Also, articles
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116 ;; probably have some locality by number, so searching
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117 ;; backwards will be faster. Especially if we're at the
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118 ;; beginning of the buffer :-). -SLB
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119 (search-backward art-string nil t))
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120 (nnmail-search-unix-mail-delim-backward)
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121 (setq start (point))
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122 (search-forward "\n\n" nil t)
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123 (setq stop (1- (point)))
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124 (set-buffer nntp-server-buffer)
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125 (insert (format "221 %d Article retrieved.\n" article))
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126 (insert-buffer-substring nnfolder-current-buffer start stop)
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127 (goto-char (point-max))
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128 (insert ".\n"))
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129 (setq articles (cdr articles)))
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130
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131 (set-buffer nntp-server-buffer)
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132 (nnheader-fold-continuation-lines)
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133 'headers)))))
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134
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135 (deffoo nnfolder-open-server (server &optional defs)
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136 (nnoo-change-server 'nnfolder server defs)
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137 (when (not (file-exists-p nnfolder-directory))
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138 (gnus-make-directory nnfolder-directory))
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139 (cond
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140 ((not (file-exists-p nnfolder-directory))
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141 (nnfolder-close-server)
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142 (nnheader-report 'nnfolder "Couldn't create directory: %s"
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143 nnfolder-directory))
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144 ((not (file-directory-p (file-truename nnfolder-directory)))
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145 (nnfolder-close-server)
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146 (nnheader-report 'nnfolder "Not a directory: %s" nnfolder-directory))
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147 (t
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148 (nnheader-report 'nnfolder "Opened server %s using directory %s"
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149 server nnfolder-directory)
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150 t)))
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151
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152 (deffoo nnfolder-request-close ()
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153 (let ((alist nnfolder-buffer-alist))
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154 (while alist
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155 (nnfolder-close-group (caar alist) nil t)
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156 (setq alist (cdr alist))))
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157 (nnoo-close-server 'nnfolder)
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158 (setq nnfolder-buffer-alist nil
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159 nnfolder-group-alist nil))
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160
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161 (deffoo nnfolder-request-article (article &optional group server buffer)
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162 (nnfolder-possibly-change-group group server)
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163 (save-excursion
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164 (set-buffer nnfolder-current-buffer)
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165 (goto-char (point-min))
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166 (when (search-forward (nnfolder-article-string article) nil t)
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167 (let (start stop)
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168 (nnmail-search-unix-mail-delim-backward)
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169 (setq start (point))
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170 (forward-line 1)
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171 (unless (and (nnmail-search-unix-mail-delim)
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172 (forward-line -1))
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173 (goto-char (point-max)))
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174 (setq stop (point))
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175 (let ((nntp-server-buffer (or buffer nntp-server-buffer)))
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176 (set-buffer nntp-server-buffer)
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177 (erase-buffer)
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178 (insert-buffer-substring nnfolder-current-buffer start stop)
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179 (goto-char (point-min))
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180 (while (looking-at "From ")
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181 (delete-char 5)
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182 (insert "X-From-Line: ")
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183 (forward-line 1))
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184 (if (numberp article)
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185 (cons nnfolder-current-group article)
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186 (goto-char (point-min))
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187 (search-forward (concat "\n" nnfolder-article-marker))
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188 (cons nnfolder-current-group
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189 (string-to-int
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190 (buffer-substring
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191 (point) (progn (end-of-line) (point)))))))))))
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192
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193 (deffoo nnfolder-request-group (group &optional server dont-check)
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194 (save-excursion
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195 (nnmail-activate 'nnfolder)
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196 (if (not (assoc group nnfolder-group-alist))
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197 (nnheader-report 'nnfolder "No such group: %s" group)
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198 (nnfolder-possibly-change-group group server)
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199 (if dont-check
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200 (progn
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201 (nnheader-report 'nnfolder "Selected group %s" group)
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202 t)
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203 (let* ((active (assoc group nnfolder-group-alist))
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204 (group (car active))
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205 (range (cadr active)))
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206 (cond
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207 ((null active)
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208 (nnheader-report 'nnfolder "No such group: %s" group))
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209 ((null nnfolder-current-group)
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210 (nnheader-report 'nnfolder "Empty group: %s" group))
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211 (t
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212 (nnheader-report 'nnfolder "Selected group %s" group)
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213 (nnheader-insert "211 %d %d %d %s\n"
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214 (1+ (- (cdr range) (car range)))
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215 (car range) (cdr range) group))))))))
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216
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217 (deffoo nnfolder-request-scan (&optional group server)
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218 (nnfolder-possibly-change-group group server t)
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219 (nnmail-get-new-mail
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220 'nnfolder
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221 (lambda ()
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222 (let ((bufs nnfolder-buffer-alist))
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223 (save-excursion
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224 (while bufs
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225 (if (not (buffer-name (nth 1 (car bufs))))
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226 (setq nnfolder-buffer-alist
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227 (delq (car bufs) nnfolder-buffer-alist))
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228 (set-buffer (nth 1 (car bufs)))
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229 (nnfolder-save-buffer)
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230 (kill-buffer (current-buffer)))
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231 (setq bufs (cdr bufs))))))
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232 nnfolder-directory
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233 group))
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234
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235 ;; Don't close the buffer if we're not shutting down the server. This way,
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236 ;; we can keep the buffer in the group buffer cache, and not have to grovel
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237 ;; over the buffer again unless we add new mail to it or modify it in some
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238 ;; way.
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239
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240 (deffoo nnfolder-close-group (group &optional server force)
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241 ;; Make sure we _had_ the group open.
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242 (when (or (assoc group nnfolder-buffer-alist)
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243 (equal group nnfolder-current-group))
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244 (let ((inf (assoc group nnfolder-buffer-alist)))
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245 (when inf
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246 (when nnfolder-current-group
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247 (push (list nnfolder-current-group nnfolder-current-buffer)
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248 nnfolder-buffer-alist))
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249 (setq nnfolder-buffer-alist
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250 (delq inf nnfolder-buffer-alist))
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251 (setq nnfolder-current-buffer (cadr inf)
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252 nnfolder-current-group (car inf))))
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253 (when (and nnfolder-current-buffer
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254 (buffer-name nnfolder-current-buffer))
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255 (save-excursion
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256 (set-buffer nnfolder-current-buffer)
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257 ;; If the buffer was modified, write the file out now.
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258 (nnfolder-save-buffer)
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259 ;; If we're shutting the server down, we need to kill the
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260 ;; buffer and remove it from the open buffer list. Or, of
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261 ;; course, if we're trying to minimize our space impact.
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262 (kill-buffer (current-buffer))
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263 (setq nnfolder-buffer-alist (delq (assoc group nnfolder-buffer-alist)
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264 nnfolder-buffer-alist)))))
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265 (setq nnfolder-current-group nil
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266 nnfolder-current-buffer nil)
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267 t)
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268
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269 (deffoo nnfolder-request-create-group (group &optional server args)
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270 (nnfolder-possibly-change-group nil server)
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271 (nnmail-activate 'nnfolder)
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272 (when group
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273 (unless (assoc group nnfolder-group-alist)
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274 (push (list group (cons 1 0)) nnfolder-group-alist)
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275 (nnmail-save-active nnfolder-group-alist nnfolder-active-file)))
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276 t)
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277
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278 (deffoo nnfolder-request-list (&optional server)
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279 (nnfolder-possibly-change-group nil server)
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280 (save-excursion
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281 (nnmail-find-file nnfolder-active-file)
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282 (setq nnfolder-group-alist (nnmail-get-active))
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283 t))
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284
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285 (deffoo nnfolder-request-newgroups (date &optional server)
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286 (nnfolder-possibly-change-group nil server)
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287 (nnfolder-request-list server))
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288
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289 (deffoo nnfolder-request-list-newsgroups (&optional server)
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290 (nnfolder-possibly-change-group nil server)
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291 (save-excursion
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292 (nnmail-find-file nnfolder-newsgroups-file)))
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293
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294 (deffoo nnfolder-request-expire-articles
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295 (articles newsgroup &optional server force)
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296 (nnfolder-possibly-change-group newsgroup server)
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297 (let* ((is-old t)
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298 rest)
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299 (nnmail-activate 'nnfolder)
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300
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301 (save-excursion
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302 (set-buffer nnfolder-current-buffer)
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303 (while (and articles is-old)
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304 (goto-char (point-min))
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305 (when (search-forward (nnfolder-article-string (car articles)) nil t)
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306 (if (setq is-old
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307 (nnmail-expired-article-p
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308 newsgroup
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309 (buffer-substring
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310 (point) (progn (end-of-line) (point)))
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311 force nnfolder-inhibit-expiry))
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312 (progn
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313 (nnheader-message 5 "Deleting article %d..."
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314 (car articles) newsgroup)
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315 (nnfolder-delete-mail))
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316 (push (car articles) rest)))
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317 (setq articles (cdr articles)))
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318 (unless nnfolder-inhibit-expiry
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319 (nnheader-message 5 "Deleting articles...done"))
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320 (nnfolder-save-buffer)
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321 ;; Find the lowest active article in this group.
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322 (let* ((active (cadr (assoc newsgroup nnfolder-group-alist)))
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323 (marker (concat "\n" nnfolder-article-marker))
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324 (number "[0-9]+")
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325 (activemin (cdr active)))
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326 (goto-char (point-min))
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327 (while (and (search-forward marker nil t)
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328 (re-search-forward number nil t))
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329 (setq activemin (min activemin
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330 (string-to-number (buffer-substring
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331 (match-beginning 0)
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332 (match-end 0))))))
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333 (setcar active activemin))
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334 (nnmail-save-active nnfolder-group-alist nnfolder-active-file)
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335 (nconc rest articles))))
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336
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337 (deffoo nnfolder-request-move-article
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338 (article group server accept-form &optional last)
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339 (let ((buf (get-buffer-create " *nnfolder move*"))
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340 result)
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341 (and
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342 (nnfolder-request-article article group server)
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343 (save-excursion
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344 (set-buffer buf)
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345 (buffer-disable-undo (current-buffer))
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346 (erase-buffer)
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347 (insert-buffer-substring nntp-server-buffer)
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348 (goto-char (point-min))
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349 (while (re-search-forward
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350 (concat "^" nnfolder-article-marker)
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351 (save-excursion (search-forward "\n\n" nil t) (point)) t)
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352 (delete-region (progn (beginning-of-line) (point))
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353 (progn (forward-line 1) (point))))
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354 (setq result (eval accept-form))
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355 (kill-buffer buf)
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356 result)
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357 (save-excursion
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358 (nnfolder-possibly-change-group group server)
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359 (set-buffer nnfolder-current-buffer)
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360 (goto-char (point-min))
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16
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361 (when (search-forward (nnfolder-article-string article) nil t)
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362 (nnfolder-delete-mail))
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363 (and last (nnfolder-save-buffer))))
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364 result))
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365
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366 (deffoo nnfolder-request-accept-article (group &optional server last)
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367 (nnfolder-possibly-change-group group server)
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368 (nnmail-check-syntax)
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369 (let ((buf (current-buffer))
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370 result)
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371 (goto-char (point-min))
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372 (when (looking-at "X-From-Line: ")
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373 (replace-match "From "))
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374 (and
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375 (nnfolder-request-list)
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376 (save-excursion
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377 (set-buffer buf)
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|
|
378 (goto-char (point-min))
|
|
|
379 (search-forward "\n\n" nil t)
|
|
|
380 (forward-line -1)
|
|
|
381 (while (re-search-backward (concat "^" nnfolder-article-marker) nil t)
|
|
|
382 (delete-region (point) (progn (forward-line 1) (point))))
|
|
16
|
383 (setq result
|
|
|
384 (car (nnfolder-save-mail
|
|
|
385 (if (stringp group)
|
|
|
386 (list (cons group (nnfolder-active-number group)))
|
|
|
387 (nnmail-article-group 'nnfolder-active-number))))))
|
|
0
|
388 (save-excursion
|
|
|
389 (set-buffer nnfolder-current-buffer)
|
|
|
390 (and last (nnfolder-save-buffer))))
|
|
|
391 (nnmail-save-active nnfolder-group-alist nnfolder-active-file)
|
|
|
392 (unless result
|
|
|
393 (nnheader-report 'nnfolder "Couldn't store article"))
|
|
|
394 result))
|
|
|
395
|
|
|
396 (deffoo nnfolder-request-replace-article (article group buffer)
|
|
|
397 (nnfolder-possibly-change-group group)
|
|
|
398 (save-excursion
|
|
|
399 (set-buffer nnfolder-current-buffer)
|
|
|
400 (goto-char (point-min))
|
|
|
401 (if (not (search-forward (nnfolder-article-string article) nil t))
|
|
|
402 nil
|
|
|
403 (nnfolder-delete-mail t t)
|
|
|
404 (insert-buffer-substring buffer)
|
|
|
405 (nnfolder-save-buffer)
|
|
|
406 t)))
|
|
|
407
|
|
|
408 (deffoo nnfolder-request-delete-group (group &optional force server)
|
|
|
409 (nnfolder-close-group group server t)
|
|
|
410 ;; Delete all articles in GROUP.
|
|
|
411 (if (not force)
|
|
|
412 () ; Don't delete the articles.
|
|
|
413 ;; Delete the file that holds the group.
|
|
16
|
414 (ignore-errors
|
|
|
415 (delete-file (nnfolder-group-pathname group))))
|
|
0
|
416 ;; Remove the group from all structures.
|
|
|
417 (setq nnfolder-group-alist
|
|
|
418 (delq (assoc group nnfolder-group-alist) nnfolder-group-alist)
|
|
|
419 nnfolder-current-group nil
|
|
|
420 nnfolder-current-buffer nil)
|
|
|
421 ;; Save the active file.
|
|
|
422 (nnmail-save-active nnfolder-group-alist nnfolder-active-file)
|
|
|
423 t)
|
|
|
424
|
|
|
425 (deffoo nnfolder-request-rename-group (group new-name &optional server)
|
|
|
426 (nnfolder-possibly-change-group group server)
|
|
|
427 (save-excursion
|
|
|
428 (set-buffer nnfolder-current-buffer)
|
|
|
429 (and (file-writable-p buffer-file-name)
|
|
16
|
430 (ignore-errors
|
|
|
431 (rename-file
|
|
|
432 buffer-file-name
|
|
|
433 (nnfolder-group-pathname new-name))
|
|
|
434 t)
|
|
0
|
435 ;; That went ok, so we change the internal structures.
|
|
|
436 (let ((entry (assoc group nnfolder-group-alist)))
|
|
|
437 (and entry (setcar entry new-name))
|
|
|
438 (setq nnfolder-current-buffer nil
|
|
|
439 nnfolder-current-group nil)
|
|
|
440 ;; Save the new group alist.
|
|
|
441 (nnmail-save-active nnfolder-group-alist nnfolder-active-file)
|
|
|
442 ;; We kill the buffer instead of renaming it and stuff.
|
|
|
443 (kill-buffer (current-buffer))
|
|
|
444 t))))
|
|
|
445
|
|
|
446
|
|
|
447 ;;; Internal functions.
|
|
|
448
|
|
|
449 (defun nnfolder-article-string (article)
|
|
|
450 (if (numberp article)
|
|
|
451 (concat "\n" nnfolder-article-marker (int-to-string article) " ")
|
|
|
452 (concat "\nMessage-ID: " article)))
|
|
|
453
|
|
|
454 (defun nnfolder-delete-mail (&optional force leave-delim)
|
|
|
455 "Delete the message that point is in."
|
|
|
456 (save-excursion
|
|
|
457 (delete-region
|
|
|
458 (save-excursion
|
|
16
|
459 (nnmail-search-unix-mail-delim-backward)
|
|
0
|
460 (if leave-delim (progn (forward-line 1) (point))
|
|
16
|
461 (point)))
|
|
0
|
462 (progn
|
|
|
463 (forward-line 1)
|
|
16
|
464 (if (nnmail-search-unix-mail-delim)
|
|
0
|
465 (if (and (not (bobp)) leave-delim)
|
|
|
466 (progn (forward-line -2) (point))
|
|
16
|
467 (point))
|
|
0
|
468 (point-max))))))
|
|
|
469
|
|
|
470 ;; When scanning, we're not looking t immediately switch into the group - if
|
|
|
471 ;; we know our information is up to date, don't even bother reading the file.
|
|
|
472 (defun nnfolder-possibly-change-group (group &optional server scanning)
|
|
|
473 (when (and server
|
|
|
474 (not (nnfolder-server-opened server)))
|
|
|
475 (nnfolder-open-server server))
|
|
|
476 (when (and group (or nnfolder-current-buffer
|
|
|
477 (not (equal group nnfolder-current-group))))
|
|
16
|
478 (gnus-make-directory (directory-file-name nnfolder-directory))
|
|
0
|
479 (nnfolder-possibly-activate-groups nil)
|
|
|
480 (or (assoc group nnfolder-group-alist)
|
|
|
481 (not (file-exists-p
|
|
|
482 (nnfolder-group-pathname group)))
|
|
|
483 (progn
|
|
16
|
484 (push (list group (cons 1 0)) nnfolder-group-alist)
|
|
0
|
485 (nnmail-save-active nnfolder-group-alist nnfolder-active-file)))
|
|
|
486 (let (inf file)
|
|
|
487 (if (and (equal group nnfolder-current-group)
|
|
|
488 nnfolder-current-buffer
|
|
|
489 (buffer-name nnfolder-current-buffer))
|
|
|
490 ()
|
|
|
491 (setq nnfolder-current-group group)
|
|
|
492
|
|
|
493 ;; If we have to change groups, see if we don't already have the mbox
|
|
|
494 ;; in memory. If we do, verify the modtime and destroy the mbox if
|
|
|
495 ;; needed so we can rescan it.
|
|
16
|
496 (when (setq inf (assoc group nnfolder-buffer-alist))
|
|
|
497 (setq nnfolder-current-buffer (nth 1 inf)))
|
|
0
|
498
|
|
|
499 ;; If the buffer is not live, make sure it isn't in the alist. If it
|
|
|
500 ;; is live, verify that nobody else has touched the file since last
|
|
|
501 ;; time.
|
|
16
|
502 (when (or (not (and nnfolder-current-buffer
|
|
|
503 (buffer-name nnfolder-current-buffer)))
|
|
|
504 (not (and (bufferp nnfolder-current-buffer)
|
|
|
505 (verify-visited-file-modtime
|
|
|
506 nnfolder-current-buffer))))
|
|
|
507 (when (and nnfolder-current-buffer
|
|
|
508 (buffer-name nnfolder-current-buffer)
|
|
|
509 (bufferp nnfolder-current-buffer))
|
|
|
510 (kill-buffer nnfolder-current-buffer))
|
|
|
511 (setq nnfolder-buffer-alist (delq inf nnfolder-buffer-alist))
|
|
|
512 (setq inf nil))
|
|
0
|
513
|
|
16
|
514 (unless inf
|
|
0
|
515 (save-excursion
|
|
|
516 (setq file (nnfolder-group-pathname group))
|
|
16
|
517 (unless (file-directory-p (file-truename file))
|
|
0
|
518 (unless (file-exists-p file)
|
|
16
|
519 (gnus-make-directory (file-name-directory file))
|
|
|
520 (nnmail-write-region 1 1 file t 'nomesg))
|
|
|
521 (setq nnfolder-current-group group)
|
|
0
|
522 (setq nnfolder-current-buffer
|
|
|
523 (nnfolder-read-folder file scanning))
|
|
16
|
524 (when nnfolder-current-buffer
|
|
|
525 (set-buffer nnfolder-current-buffer)
|
|
|
526 (push (list group nnfolder-current-buffer)
|
|
|
527 nnfolder-buffer-alist)))))))
|
|
0
|
528 (setq nnfolder-current-group group)))
|
|
|
529
|
|
16
|
530 (defun nnfolder-save-mail (group-art-list)
|
|
0
|
531 "Called narrowed to an article."
|
|
16
|
532 (let* (save-list group-art)
|
|
0
|
533 (goto-char (point-min))
|
|
2
|
534 ;; The From line may have been quoted by movemail.
|
|
|
535 (when (looking-at (concat ">" message-unix-mail-delimiter))
|
|
|
536 (delete-char 1))
|
|
|
537 ;; This might come from somewhere else.
|
|
16
|
538 (unless (looking-at message-unix-mail-delimiter)
|
|
0
|
539 (insert "From nobody " (current-time-string) "\n")
|
|
|
540 (goto-char (point-min)))
|
|
|
541 ;; Quote all "From " lines in the article.
|
|
|
542 (forward-line 1)
|
|
16
|
543 (while (re-search-forward "^From " nil t)
|
|
0
|
544 (beginning-of-line)
|
|
|
545 (insert "> "))
|
|
|
546 (setq save-list group-art-list)
|
|
|
547 (nnmail-insert-lines)
|
|
|
548 (nnmail-insert-xref group-art-list)
|
|
|
549 (run-hooks 'nnmail-prepare-save-mail-hook)
|
|
|
550 (run-hooks 'nnfolder-prepare-save-mail-hook)
|
|
|
551
|
|
|
552 ;; Insert the mail into each of the destination groups.
|
|
|
553 (while group-art-list
|
|
|
554 (setq group-art (car group-art-list)
|
|
|
555 group-art-list (cdr group-art-list))
|
|
|
556
|
|
|
557 ;; Kill the previous newsgroup markers.
|
|
|
558 (goto-char (point-min))
|
|
|
559 (search-forward "\n\n" nil t)
|
|
|
560 (forward-line -1)
|
|
|
561 (while (search-backward (concat "\n" nnfolder-article-marker) nil t)
|
|
|
562 (delete-region (1+ (point)) (progn (forward-line 2) (point))))
|
|
|
563
|
|
|
564 (nnfolder-possibly-change-group (car group-art))
|
|
|
565 ;; Insert the new newsgroup marker.
|
|
|
566 (nnfolder-insert-newsgroup-line group-art)
|
|
|
567 (unless nnfolder-current-buffer
|
|
|
568 (nnfolder-close-group (car group-art))
|
|
|
569 (nnfolder-request-create-group (car group-art))
|
|
|
570 (nnfolder-possibly-change-group (car group-art)))
|
|
|
571 (let ((beg (point-min))
|
|
|
572 (end (point-max))
|
|
|
573 (obuf (current-buffer)))
|
|
|
574 (set-buffer nnfolder-current-buffer)
|
|
|
575 (goto-char (point-max))
|
|
|
576 (unless (eolp)
|
|
|
577 (insert "\n"))
|
|
16
|
578 (unless (bobp)
|
|
|
579 (insert "\n"))
|
|
0
|
580 (insert-buffer-substring obuf beg end)
|
|
|
581 (set-buffer obuf)))
|
|
|
582
|
|
|
583 ;; Did we save it anywhere?
|
|
|
584 save-list))
|
|
|
585
|
|
|
586 (defun nnfolder-insert-newsgroup-line (group-art)
|
|
|
587 (save-excursion
|
|
|
588 (goto-char (point-min))
|
|
16
|
589 (when (search-forward "\n\n" nil t)
|
|
|
590 (forward-char -1)
|
|
|
591 (insert (format (concat nnfolder-article-marker "%d %s\n")
|
|
|
592 (cdr group-art) (current-time-string))))))
|
|
0
|
593
|
|
|
594 (defun nnfolder-possibly-activate-groups (&optional group)
|
|
|
595 (save-excursion
|
|
|
596 ;; If we're looking for the activation of a specific group, find out
|
|
|
597 ;; its real name and switch to it.
|
|
16
|
598 (when group
|
|
|
599 (nnfolder-possibly-change-group group))
|
|
0
|
600 ;; If the group alist isn't active, activate it now.
|
|
|
601 (nnmail-activate 'nnfolder)))
|
|
|
602
|
|
|
603 (defun nnfolder-active-number (group)
|
|
28
|
604 ;; Find the next article number in GROUP.
|
|
|
605 (let ((active (cadr (assoc group nnfolder-group-alist))))
|
|
|
606 (if active
|
|
|
607 (setcdr active (1+ (cdr active)))
|
|
|
608 ;; This group is new, so we create a new entry for it.
|
|
|
609 ;; This might be a bit naughty... creating groups on the drop of
|
|
|
610 ;; a hat, but I don't know...
|
|
|
611 (push (list group (setq active (cons 1 1)))
|
|
|
612 nnfolder-group-alist))
|
|
|
613 (cdr active)))
|
|
0
|
614
|
|
|
615
|
|
|
616 ;; This method has a problem if you've accidentally let the active list get
|
|
|
617 ;; out of sync with the files. This could happen, say, if you've
|
|
|
618 ;; accidentally gotten new mail with something other than Gnus (but why
|
|
|
619 ;; would _that_ ever happen? :-). In that case, we will be in the middle of
|
|
|
620 ;; processing the file, ready to add new X-Gnus article number markers, and
|
|
|
621 ;; we'll run across a message with no ID yet - the active list _may_not_ be
|
|
|
622 ;; ready for us yet.
|
|
|
623
|
|
|
624 ;; To handle this, I'm modifying this routine to maintain the maximum ID seen
|
|
|
625 ;; so far, and when we hit a message with no ID, we will _manually_ scan the
|
|
|
626 ;; rest of the message looking for any more, possibly higher IDs. We'll
|
|
|
627 ;; assume the maximum that we find is the highest active. Note that this
|
|
|
628 ;; shouldn't cost us much extra time at all, but will be a lot less
|
|
|
629 ;; vulnerable to glitches between the mbox and the active file.
|
|
|
630
|
|
|
631 (defun nnfolder-read-folder (file &optional scanning)
|
|
|
632 ;; This is an attempt at a serious shortcut - don't even read in the file
|
|
|
633 ;; if we know we've seen it since the last time it was touched.
|
|
|
634 (let ((scantime (cadr (assoc nnfolder-current-group
|
|
|
635 nnfolder-scantime-alist)))
|
|
16
|
636 (modtime (nth 5 (file-attributes file))))
|
|
0
|
637 (if (and scanning scantime
|
|
|
638 (eq (car scantime) (car modtime))
|
|
|
639 (eq (cdr scantime) (cadr modtime)))
|
|
|
640 nil
|
|
|
641 (save-excursion
|
|
|
642 (nnfolder-possibly-activate-groups nil)
|
|
|
643 ;; Read in the file.
|
|
|
644 (set-buffer (setq nnfolder-current-buffer
|
|
16
|
645 (nnheader-find-file-noselect file)))
|
|
0
|
646 (buffer-disable-undo (current-buffer))
|
|
16
|
647 (setq buffer-read-only nil)
|
|
0
|
648 ;; If the file hasn't been touched since the last time we scanned it,
|
|
|
649 ;; don't bother doing anything with it.
|
|
|
650 (let ((delim (concat "^" message-unix-mail-delimiter))
|
|
|
651 (marker (concat "\n" nnfolder-article-marker))
|
|
|
652 (number "[0-9]+")
|
|
2
|
653 (active (or (cadr (assoc nnfolder-current-group
|
|
|
654 nnfolder-group-alist))
|
|
|
655 (cons 1 0)))
|
|
0
|
656 (scantime (assoc nnfolder-current-group nnfolder-scantime-alist))
|
|
|
657 (minid (lsh -1 -1))
|
|
|
658 maxid start end newscantime)
|
|
|
659
|
|
|
660 (setq maxid (or (cdr active) 0))
|
|
|
661 (goto-char (point-min))
|
|
|
662
|
|
|
663 ;; Anytime the active number is 1 or 0, it is suspect. In that
|
|
|
664 ;; case, search the file manually to find the active number. Or,
|
|
|
665 ;; of course, if we're being paranoid. (This would also be the
|
|
|
666 ;; place to build other lists from the header markers, such as
|
|
|
667 ;; expunge lists, etc., if we ever desired to abandon the active
|
|
|
668 ;; file entirely for mboxes.)
|
|
|
669 (when (or nnfolder-ignore-active-file
|
|
|
670 (< maxid 2))
|
|
16
|
671 (while (and (search-forward marker nil t)
|
|
|
672 (re-search-forward number nil t))
|
|
|
673 (let ((newnum (string-to-number (match-string 0))))
|
|
|
674 (setq maxid (max maxid newnum))
|
|
|
675 (setq minid (min minid newnum))))
|
|
|
676 (setcar active (max 1 (min minid maxid)))
|
|
|
677 (setcdr active (max maxid (cdr active)))
|
|
|
678 (goto-char (point-min)))
|
|
0
|
679
|
|
|
680 ;; As long as we trust that the user will only insert unmarked mail
|
|
|
681 ;; at the end, go to the end and search backwards for the last
|
|
|
682 ;; marker. Find the start of that message, and begin to search for
|
|
|
683 ;; unmarked messages from there.
|
|
16
|
684 (when (not (or nnfolder-distrust-mbox
|
|
|
685 (< maxid 2)))
|
|
|
686 (goto-char (point-max))
|
|
|
687 (if (not (re-search-backward marker nil t))
|
|
|
688 (goto-char (point-min))
|
|
|
689 (when (not (nnmail-search-unix-mail-delim))
|
|
|
690 (goto-char (point-min)))))
|
|
0
|
691
|
|
|
692 ;; Keep track of the active number on our own, and insert it back
|
|
16
|
693 ;; into the active list when we're done. Also, prime the pump to
|
|
0
|
694 ;; cut down on the number of searches we do.
|
|
|
695 (setq end (point-marker))
|
|
16
|
696 (set-marker end (or (and (nnmail-search-unix-mail-delim)
|
|
|
697 (point))
|
|
0
|
698 (point-max)))
|
|
|
699 (while (not (= end (point-max)))
|
|
|
700 (setq start (marker-position end))
|
|
|
701 (goto-char end)
|
|
|
702 ;; There may be more than one "From " line, so we skip past
|
|
|
703 ;; them.
|
|
16
|
704 (while (looking-at delim)
|
|
0
|
705 (forward-line 1))
|
|
16
|
706 (set-marker end (or (and (nnmail-search-unix-mail-delim)
|
|
|
707 (point))
|
|
0
|
708 (point-max)))
|
|
|
709 (goto-char start)
|
|
16
|
710 (when (not (search-forward marker end t))
|
|
|
711 (narrow-to-region start end)
|
|
|
712 (nnmail-insert-lines)
|
|
|
713 (nnfolder-insert-newsgroup-line
|
|
|
714 (cons nil (nnfolder-active-number nnfolder-current-group)))
|
|
|
715 (widen)))
|
|
0
|
716
|
|
|
717 ;; Make absolutely sure that the active list reflects reality!
|
|
|
718 (nnmail-save-active nnfolder-group-alist nnfolder-active-file)
|
|
|
719 ;; Set the scantime for this group.
|
|
|
720 (setq newscantime (visited-file-modtime))
|
|
|
721 (if scantime
|
|
|
722 (setcdr scantime (list newscantime))
|
|
16
|
723 (push (list nnfolder-current-group newscantime)
|
|
0
|
724 nnfolder-scantime-alist))
|
|
|
725 (current-buffer))))))
|
|
|
726
|
|
|
727 ;;;###autoload
|
|
|
728 (defun nnfolder-generate-active-file ()
|
|
|
729 "Look for mbox folders in the nnfolder directory and make them into groups."
|
|
|
730 (interactive)
|
|
|
731 (nnmail-activate 'nnfolder)
|
|
|
732 (let ((files (directory-files nnfolder-directory))
|
|
16
|
733 file)
|
|
0
|
734 (while (setq file (pop files))
|
|
|
735 (when (and (not (backup-file-name-p file))
|
|
16
|
736 (nnheader-mail-file-mbox-p
|
|
|
737 (concat nnfolder-directory file)))
|
|
|
738 (nnheader-message 5 "Adding group %s..." file)
|
|
|
739 (push (list file (cons 1 0)) nnfolder-group-alist)
|
|
|
740 (nnfolder-possibly-change-group file)
|
|
|
741 (nnfolder-close-group file))
|
|
0
|
742 (message ""))))
|
|
|
743
|
|
|
744 (defun nnfolder-group-pathname (group)
|
|
|
745 "Make pathname for GROUP."
|
|
|
746 (let ((dir (file-name-as-directory (expand-file-name nnfolder-directory))))
|
|
|
747 ;; If this file exists, we use it directly.
|
|
|
748 (if (or nnmail-use-long-file-names
|
|
|
749 (file-exists-p (concat dir group)))
|
|
|
750 (concat dir group)
|
|
|
751 ;; If not, we translate dots into slashes.
|
|
|
752 (concat dir (nnheader-replace-chars-in-string group ?. ?/)))))
|
|
|
753
|
|
|
754 (defun nnfolder-save-buffer ()
|
|
|
755 "Save the buffer."
|
|
|
756 (when (buffer-modified-p)
|
|
|
757 (run-hooks 'nnfolder-save-buffer-hook)
|
|
|
758 (save-buffer)))
|
|
|
759
|
|
|
760 (provide 'nnfolder)
|
|
|
761
|
|
|
762 ;;; nnfolder.el ends here
|
