6 ; Oort Gnus v0.08 - This release updated agent to no longer use
7 ; history file and to support a compressed alist.
9 (defvar gnus-agent-compressed-agentview-search-only nil)
11 (defun gnus-agent-convert-to-compressed-agentview (converting-to)
12 "Iterates over all agentview files to ensure that they have been
13 converted to the compressed format."
15 (let ((search-in (list gnus-agent-directory))
20 (while (setq here (pop search-in))
21 (setq members (directory-files here t))
22 (while (setq member (pop members))
23 (cond ((string-match "/\\.\\.?$" member)
25 ((file-directory-p member)
26 (push member search-in))
27 ((equal (file-name-nondirectory member) ".agentview")
28 (setq converted-something
29 (or (gnus-agent-convert-agentview member)
30 converted-something))))))
32 (if converted-something
33 (gnus-message 4 "Successfully converted Gnus %s offline (agent) files to %s" gnus-newsrc-file-version converting-to))))
35 (defun gnus-agent-convert-to-compressed-agentview-prompt ()
36 (catch 'found-file-to-convert
37 (let ((gnus-agent-compressed-agentview-search-only t))
38 (gnus-agent-convert-to-compressed-agentview nil))))
40 (gnus-convert-mark-converter-prompt 'gnus-agent-convert-to-compressed-agentview 'gnus-agent-convert-to-compressed-agentview-prompt)
42 (defun gnus-agent-convert-agentview (file)
43 "Load FILE and do a `read' there."
45 (nnheader-insert-file-contents file)
46 (goto-char (point-min))
47 (let ((inhibit-quit t)
48 (alist (read (current-buffer)))
49 (version (condition-case nil (read (current-buffer))
57 (gnus-command-method nil))
58 (mm-disable-multibyte) ;; everything is binary
61 (let ((file (concat (file-name-directory file) "/history")))
62 (when (file-exists-p file)
63 (nnheader-insert-file-contents file)
64 (setq history-file file)))
66 (goto-char (point-min))
69 "[^\t\n]+\t\\([0-9]+\\)\t\\([^ \n]+\\) \\([0-9]+\\)")
70 (string= (gnus-agent-article-name ".agentview" (match-string 2))
72 (setq entry (assoc (string-to-number (match-string 3)) alist)))
73 (setcdr entry (string-to-number (match-string 1))))
75 (setq changed-version t)))
77 (setq changed-version t)))
80 (when gnus-agent-compressed-agentview-search-only
81 (throw 'found-file-to-convert t))
84 (let ((compressed nil))
85 (mapcar (lambda (pair)
86 (let* ((article-id (car pair))
87 (day-of-download (cdr pair))
88 (comp-list (assq day-of-download compressed)))
91 (cons article-id (cdr comp-list)))
93 (cons (list day-of-download article-id)
96 (mapcar (lambda (comp-list)
98 (gnus-compress-sequence
99 (nreverse (cdr comp-list)))))
101 (princ compressed (current-buffer)))
105 (delete-file history-file))
108 ;; End of Oort Gnus v0.08 updates
110 ;; No Gnus v0.3 - This release provides a mechanism for upgrading gnus
111 ;; from previous versions. Therefore, the previous
112 ;; hacks to handle a gnus-agent-expire-days that
113 ;; specifies a list of values can be removed.
115 (defun gnus-agent-unlist-expire-days (converting-to)
116 (when (listp gnus-agent-expire-days)
119 (save-window-excursion
120 (setq buffer (gnus-get-buffer-create " *Gnus agent upgrade*"))
123 (insert "The definition of gnus-agent-expire-days has been changed.\nYou currently have it set to the list:\n ")
124 (gnus-pp gnus-agent-expire-days)
126 (insert "\nIn order to use version '" converting-to "' of gnus, you will need to set\n")
127 (insert "gnus-agent-expire-days to an integer. If you still wish to set different\n")
128 (insert "expiration days to individual groups, you must instead set the\n")
129 (insert "'agent-days-until-old group and/or topic parameter.\n")
131 (insert "If you would like, gnus can iterate over every group comparing its name to the\n")
132 (insert "regular expressions that you currently have in gnus-agent-expire-days. When\n")
133 (insert "gnus finds a match, it will update that group's 'agent-days-until-old group\n")
134 (insert "parameter to the value associated with the regular expression.\n")
136 (insert "Whether gnus assigns group parameters, or not, gnus will terminate with an\n")
137 (insert "ERROR as soon as this function completes. The reason is that you must\n")
138 (insert "manually edit your configuration to either not set gnus-agent-expire-days or\n")
139 (insert "to set it to an integer before gnus can be used.\n")
141 (insert "Once you have successfully edited gnus-agent-expire-days, gnus will be able to\n")
142 (insert "execute past this function.\n")
144 (insert "Should gnus use gnus-agent-expire-days to assign\n")
145 (insert "agent-days-until-old parameters to individual groups? (Y/N)")
147 (switch-to-buffer buffer)
151 (let ((echo-keystrokes 0)
153 (while (progn (setq c (read-char-exclusive))
154 (cond ((or (eq c ?y) (eq c ?Y))
156 (let ((groups (gnus-group-listed-groups)))
158 (let* ((group (pop groups))
159 (days gnus-agent-expire-days)
162 (when (eq 0 (string-match
165 (throw 'found (cadar days)))
166 (setq days (cdr days)))
169 (gnus-group-set-parameter group 'agent-days-until-old
173 ((or (eq c ?n) (eq c ?N))
177 (kill-buffer buffer))
178 (error "Change gnus-agent-expire-days to an integer for gnus to start"))))
180 ;; The gnus-agent-unlist-expire-days has its own conversion prompt.
181 ;; Therefore, hide the default prompt.
182 (gnus-convert-mark-converter-prompt 'gnus-agent-unlist-expire-days t)
184 (defun gnus-agent-unhook-expire-days (converting-to)
185 "Remove every lambda from gnus-group-prepare-hook that mention the
186 symbol gnus-agent-do-once in their definition. This should NOT be
187 necessary as gnus-agent.el no longer adds them. However, it is
188 possible that the hook was persistently saved."
189 (let ((h t)) ; iterate from bgn of hook
191 (let ((func (progn (when (eq h t)
192 ;; init h to list of functions
193 (setq h (cond ((listp gnus-group-prepare-hook)
194 gnus-group-prepare-hook)
195 ((boundp 'gnus-group-prepare-hook)
196 (list gnus-group-prepare-hook)))))
199 (when (cond ((eq (type-of func) 'compiled-function)
200 ;; Search def. of compiled function for gnus-agent-do-once string
206 (setq definition (cons char definition)))))
207 (princ func) ; populates definition with reversed list of characters
208 (let* ((i (length definition))
209 (s (make-string i 0)))
211 (aset s (setq i (1- i)) (pop definition)))
213 (string-match "\\bgnus-agent-do-once\\b" s))))
215 (eq (cadr (nth 2 func)) 'gnus-agent-do-once) ; handles eval'd lambda
218 (remove-hook 'gnus-group-prepare-hook func)
219 ;; I don't what remove-hook is going to actually do to the
220 ;; hook list so start over from the beginning.
223 ;; gnus-agent-unhook-expire-days is safe in that it does not modify
224 ;; the .newsrc.eld file.
225 (gnus-convert-mark-converter-prompt 'gnus-agent-unhook-expire-days t)