1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
|
;;; gnus-agent.el --- Legacy unplugged support for Gnus
;; Copyright (C) 2004-2015 Free Software Foundation, Inc.
;; Author: Kevin Greiner <kgreiner@xpediantsolutions.com>
;; Keywords: news
;; This file is part of GNU Emacs.
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; Conversion functions for the Agent.
;;; Code:
(require 'gnus-start)
(require 'gnus-util)
(require 'gnus-range)
(require 'gnus-agent)
;; Oort Gnus v0.08 - This release updated agent to no longer use
;; history file and to support a compressed alist.
(defvar gnus-agent-compressed-agentview-search-only nil)
(defun gnus-agent-convert-to-compressed-agentview (converting-to)
"Iterates over all agentview files to ensure that they have been
converted to the compressed format."
(let ((search-in (list gnus-agent-directory))
here
members
member
converted-something)
(while (setq here (pop search-in))
(setq members (directory-files here t))
(while (setq member (pop members))
(cond ((string-match "/\\.\\.?$" member)
nil)
((file-directory-p member)
(push member search-in))
((equal (file-name-nondirectory member) ".agentview")
(setq converted-something
(or (gnus-agent-convert-agentview member)
converted-something))))))
(if converted-something
(gnus-message 4 "Successfully converted Gnus %s offline (agent) files to %s" gnus-newsrc-file-version converting-to))))
(defun gnus-agent-convert-to-compressed-agentview-prompt ()
(catch 'found-file-to-convert
(let ((gnus-agent-compressed-agentview-search-only t))
(gnus-agent-convert-to-compressed-agentview nil))))
(gnus-convert-mark-converter-prompt 'gnus-agent-convert-to-compressed-agentview 'gnus-agent-convert-to-compressed-agentview-prompt)
(defun gnus-agent-convert-agentview (file)
"Load FILE and do a `read' there."
(with-temp-buffer
(nnheader-insert-file-contents file)
(goto-char (point-min))
(let ((inhibit-quit t)
(alist (read (current-buffer)))
(version (condition-case nil (read (current-buffer))
(end-of-file 0)))
changed-version
history-file)
(cond
((= version 0)
(let (entry
(gnus-command-method nil))
(mm-disable-multibyte) ;; everything is binary
(erase-buffer)
(insert "\n")
(let ((file (concat (file-name-directory file) "/history")))
(when (file-exists-p file)
(nnheader-insert-file-contents file)
(setq history-file file)))
(goto-char (point-min))
(while (not (eobp))
(if (and (looking-at
"[^\t\n]+\t\\([0-9]+\\)\t\\([^ \n]+\\) \\([0-9]+\\)")
(string= (gnus-agent-article-name ".agentview" (match-string 2))
file)
(setq entry (assoc (string-to-number (match-string 3)) alist)))
(setcdr entry (string-to-number (match-string 1))))
(forward-line 1))
(setq changed-version t)))
((= version 1)
(setq changed-version t)))
(when changed-version
(when gnus-agent-compressed-agentview-search-only
(throw 'found-file-to-convert t))
(erase-buffer)
(let (article-id day-of-download comp-list compressed)
(while alist
(setq article-id (caar alist)
day-of-download (cdar alist)
comp-list (assq day-of-download compressed)
alist (cdr alist))
(if comp-list
(setcdr comp-list (cons article-id (cdr comp-list)))
(push (list day-of-download article-id) compressed)))
(setq alist compressed)
(while alist
(setq comp-list (pop alist))
(setcdr comp-list
(gnus-compress-sequence (nreverse (cdr comp-list)))))
(princ compressed (current-buffer)))
(insert "\n2\n")
(write-file file)
(when history-file
(delete-file history-file))
t))))
;; End of Oort Gnus v0.08 updates
;; No Gnus v0.3 - This release provides a mechanism for upgrading gnus
;; from previous versions. Therefore, the previous
;; hacks to handle a gnus-agent-expire-days that
;; specifies a list of values can be removed.
(defun gnus-agent-unlist-expire-days (converting-to)
(when (listp gnus-agent-expire-days)
(let (buffer)
(unwind-protect
(save-window-excursion
(setq buffer (gnus-get-buffer-create " *Gnus agent upgrade*"))
(set-buffer buffer)
(erase-buffer)
(insert "The definition of gnus-agent-expire-days has been changed.\nYou currently have it set to the list:\n ")
(gnus-pp gnus-agent-expire-days)
(insert "\nIn order to use version '" converting-to "' of gnus, you will need to set\n")
(insert "gnus-agent-expire-days to an integer. If you still wish to set different\n")
(insert "expiration days to individual groups, you must instead set the\n")
(insert "'agent-days-until-old group and/or topic parameter.\n")
(insert "\n")
(insert "If you would like, gnus can iterate over every group comparing its name to the\n")
(insert "regular expressions that you currently have in gnus-agent-expire-days. When\n")
(insert "gnus finds a match, it will update that group's 'agent-days-until-old group\n")
(insert "parameter to the value associated with the regular expression.\n")
(insert "\n")
(insert "Whether gnus assigns group parameters, or not, gnus will terminate with an\n")
(insert "ERROR as soon as this function completes. The reason is that you must\n")
(insert "manually edit your configuration to either not set gnus-agent-expire-days or\n")
(insert "to set it to an integer before gnus can be used.\n")
(insert "\n")
(insert "Once you have successfully edited gnus-agent-expire-days, gnus will be able to\n")
(insert "execute past this function.\n")
(insert "\n")
(insert "Should gnus use gnus-agent-expire-days to assign\n")
(insert "agent-days-until-old parameters to individual groups? (Y/N)")
(switch-to-buffer buffer)
(beep)
(beep)
(let ((echo-keystrokes 0)
c)
(while (progn (setq c (read-char-exclusive))
(cond ((or (eq c ?y) (eq c ?Y))
(save-excursion
(let ((groups (gnus-group-listed-groups)))
(while groups
(let* ((group (pop groups))
(days gnus-agent-expire-days)
(day (catch 'found
(while days
(when (eq 0 (string-match
(caar days)
group))
(throw 'found (cadr (car days))))
(setq days (cdr days)))
nil)))
(when day
(gnus-group-set-parameter group 'agent-days-until-old
day))))))
nil
)
((or (eq c ?n) (eq c ?N))
nil)
(t
t))))))
(kill-buffer buffer))
(error "Change gnus-agent-expire-days to an integer for gnus to start"))))
;; The gnus-agent-unlist-expire-days has its own conversion prompt.
;; Therefore, hide the default prompt.
(gnus-convert-mark-converter-prompt 'gnus-agent-unlist-expire-days t)
(defun gnus-agent-unhook-expire-days (converting-to)
"Remove every lambda from `gnus-group-prepare-hook' that mention the
symbol `gnus-agent-do-once' in their definition. This should NOT be
necessary as gnus-agent.el no longer adds them. However, it is
possible that the hook was persistently saved."
(let ((h t)) ; Iterate from bgn of hook.
(while h
(let ((func (progn (when (eq h t)
;; Init h to list of functions.
(setq h (cond ((listp gnus-group-prepare-hook)
gnus-group-prepare-hook)
((boundp 'gnus-group-prepare-hook)
(list gnus-group-prepare-hook)))))
(pop h))))
(when (cond ((byte-code-function-p func)
;; Search def. of compiled function for
;; gnus-agent-do-once string.
(let* (definition
print-level
print-length
(standard-output
(lambda (char)
(setq definition (cons char definition)))))
(princ func) ; Populates definition with reversed list
; of characters.
(let* ((i (length definition))
(s (make-string i 0)))
(while definition
(aset s (setq i (1- i)) (pop definition)))
(string-match "\\bgnus-agent-do-once\\b" s))))
((listp func)
(eq (cadr (nth 2 func)) 'gnus-agent-do-once) ; Handles eval'd lambda.
))
(remove-hook 'gnus-group-prepare-hook func)
;; I don't what remove-hook is going to actually do to the
;; hook list so start over from the beginning.
(setq h t))))))
;; gnus-agent-unhook-expire-days is safe in that it does not modify
;; the .newsrc.eld file.
(gnus-convert-mark-converter-prompt 'gnus-agent-unhook-expire-days t)
(provide 'legacy-gnus-agent)
;;; legacy-gnus-agent.el ends here
|
