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eec82323 | 1 | ;;; gnus-move.el --- commands for moving Gnus from one server to another |
e84b4b86 | 2 | |
b6c2d8c6 | 3 | ;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
d7a0267c | 4 | ;; 2005, 2006, 2007 Free Software Foundation, Inc. |
eec82323 | 5 | |
6748645f | 6 | ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org> |
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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 | |
5a9dffec | 13 | ;; the Free Software Foundation; either version 3, or (at your option) |
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14 | ;; 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; see the file COPYING. If not, write to the | |
3a35cf56 LK |
23 | ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
24 | ;; Boston, MA 02110-1301, USA. | |
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25 | |
26 | ;;; Commentary: | |
27 | ||
28 | ;;; Code: | |
29 | ||
51bab999 RS |
30 | (eval-when-compile (require 'cl)) |
31 | ||
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32 | (require 'gnus) |
33 | (require 'gnus-start) | |
34 | (require 'gnus-int) | |
35 | (require 'gnus-range) | |
36 | ||
37 | ;;; | |
38 | ;;; Moving by comparing Message-ID's. | |
39 | ;;; | |
40 | ||
41 | ;;;###autoload | |
42 | (defun gnus-change-server (from-server to-server) | |
43 | "Move from FROM-SERVER to TO-SERVER. | |
44 | Update the .newsrc.eld file to reflect the change of nntp server." | |
45 | (interactive | |
46 | (list gnus-select-method (gnus-read-method "Move to method: "))) | |
47 | ||
48 | ;; First start Gnus. | |
49 | (let ((gnus-activate-level 0) | |
b890d447 | 50 | (mail-sources nil)) |
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51 | (gnus)) |
52 | ||
53 | (save-excursion | |
54 | ;; Go through all groups and translate. | |
01c52d31 MB |
55 | (let ((nntp-nov-gap nil)) |
56 | (dolist (info gnus-newsrc-alist) | |
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57 | (when (gnus-group-native-p (gnus-info-group info)) |
58 | (gnus-move-group-to-server info from-server to-server)))))) | |
59 | ||
60 | (defun gnus-move-group-to-server (info from-server to-server) | |
61 | "Move group INFO from FROM-SERVER to TO-SERVER." | |
62 | (let ((group (gnus-info-group info)) | |
63 | to-active hashtb type mark marks | |
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64 | to-article to-reads to-marks article |
65 | act-articles) | |
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66 | (gnus-message 7 "Translating %s..." group) |
67 | (when (gnus-request-group group nil to-server) | |
68 | (setq to-active (gnus-parse-active) | |
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69 | hashtb (gnus-make-hashtable 1024) |
70 | act-articles (gnus-uncompress-range to-active)) | |
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71 | ;; Fetch the headers from the `to-server'. |
72 | (when (and to-active | |
a8151ef7 | 73 | act-articles |
eec82323 | 74 | (setq type (gnus-retrieve-headers |
a8151ef7 | 75 | act-articles |
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76 | group to-server))) |
77 | ;; Convert HEAD headers. I don't care. | |
78 | (when (eq type 'headers) | |
79 | (nnvirtual-convert-headers)) | |
80 | ;; Create a mapping from Message-ID to article number. | |
81 | (set-buffer nntp-server-buffer) | |
82 | (goto-char (point-min)) | |
83 | (while (looking-at | |
84 | "^[0-9]+\t[^\t]*\t[^\t]*\t[^\t]*\t\\([^\t]*\\)\t") | |
85 | (gnus-sethash | |
86 | (buffer-substring (match-beginning 1) (match-end 1)) | |
87 | (read (current-buffer)) | |
88 | hashtb) | |
89 | (forward-line 1)) | |
90 | ;; Then we read the headers from the `from-server'. | |
91 | (when (and (gnus-request-group group nil from-server) | |
92 | (gnus-active group) | |
16409b0b GM |
93 | (gnus-uncompress-range |
94 | (gnus-active group)) | |
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95 | (setq type (gnus-retrieve-headers |
96 | (gnus-uncompress-range | |
97 | (gnus-active group)) | |
98 | group from-server))) | |
99 | ;; Make it easier to map marks. | |
100 | (let ((mark-lists (gnus-info-marks info)) | |
101 | ms type m) | |
102 | (while mark-lists | |
103 | (setq type (caar mark-lists) | |
104 | ms (gnus-uncompress-range (cdr (pop mark-lists)))) | |
105 | (while ms | |
106 | (if (setq m (assq (car ms) marks)) | |
107 | (setcdr m (cons type (cdr m))) | |
108 | (push (list (car ms) type) marks)) | |
109 | (pop ms)))) | |
110 | ;; Convert. | |
111 | (when (eq type 'headers) | |
112 | (nnvirtual-convert-headers)) | |
113 | ;; Go through the headers and map away. | |
114 | (set-buffer nntp-server-buffer) | |
115 | (goto-char (point-min)) | |
116 | (while (looking-at | |
117 | "^[0-9]+\t[^\t]*\t[^\t]*\t[^\t]*\t\\([^\t]*\\)\t") | |
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118 | (when (setq to-article |
119 | (gnus-gethash | |
120 | (buffer-substring (match-beginning 1) (match-end 1)) | |
121 | hashtb)) | |
122 | ;; Add this article to the list of read articles. | |
123 | (push to-article to-reads) | |
124 | ;; See if there are any marks and then add them. | |
125 | (when (setq mark (assq (read (current-buffer)) marks)) | |
126 | (setq marks (delq mark marks)) | |
127 | (setcar mark to-article) | |
128 | (push mark to-marks)) | |
129 | (forward-line 1))) | |
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130 | ;; Now we know what the read articles are and what the |
131 | ;; article marks are. We transform the information | |
132 | ;; into the Gnus info format. | |
133 | (setq to-reads | |
134 | (gnus-range-add | |
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135 | (gnus-compress-sequence |
136 | (and (setq to-reads (delq nil to-reads)) | |
137 | (sort to-reads '<)) | |
138 | t) | |
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139 | (cons 1 (1- (car to-active))))) |
140 | (gnus-info-set-read info to-reads) | |
141 | ;; Do the marks. I'm sure y'all understand what's | |
142 | ;; going on down below, so I won't bother with any | |
143 | ;; further comments. <duck> | |
144 | (let ((mlists gnus-article-mark-lists) | |
145 | lists ms a) | |
146 | (while mlists | |
147 | (push (list (cdr (pop mlists))) lists)) | |
148 | (while (setq ms (pop marks)) | |
149 | (setq article (pop ms)) | |
150 | (while ms | |
151 | (setcdr (setq a (assq (pop ms) lists)) | |
152 | (cons article (cdr a))))) | |
153 | (setq a lists) | |
154 | (while a | |
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155 | (setcdr (car a) (gnus-compress-sequence |
156 | (and (cdar a) (sort (cdar a) '<)))) | |
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157 | (pop a)) |
158 | (gnus-info-set-marks info lists t))))) | |
159 | (gnus-message 7 "Translating %s...done" group))) | |
160 | ||
161 | (defun gnus-group-move-group-to-server (info from-server to-server) | |
162 | "Move the group on the current line from FROM-SERVER to TO-SERVER." | |
163 | (interactive | |
164 | (let ((info (gnus-get-info (gnus-group-group-name)))) | |
165 | (list info (gnus-find-method-for-group (gnus-info-group info)) | |
166 | (gnus-read-method (format "Move group %s to method: " | |
167 | (gnus-info-group info)))))) | |
168 | (save-excursion | |
169 | (gnus-move-group-to-server info from-server to-server) | |
170 | ;; We have to update the group info to point use the right server. | |
171 | (gnus-info-set-method info to-server t) | |
172 | ;; We also have to change the name of the group and stuff. | |
173 | (let* ((group (gnus-info-group info)) | |
174 | (new-name (gnus-group-prefixed-name | |
175 | (gnus-group-real-name group) to-server))) | |
176 | (gnus-info-set-group info new-name) | |
01c52d31 | 177 | (gnus-sethash new-name (gnus-group-entry group) gnus-newsrc-hashtb) |
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178 | (gnus-sethash group nil gnus-newsrc-hashtb)))) |
179 | ||
180 | (provide 'gnus-move) | |
181 | ||
ab5796a9 | 182 | ;;; arch-tag: 503742b8-7d66-4d79-bb31-4a698070707b |
eec82323 | 183 | ;;; gnus-move.el ends here |