+++ /dev/null
-;;; legacy-gnus-agent.el --- Legacy unplugged support for Gnus -*- lexical-binding: t; -*-
-
-;; Copyright (C) 2004-2024 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 <https://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
- (format-message
- "\nIn order to use version `%s' of gnus, you will need to set\n"
- converting-to))
- (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 (format-message
- "`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 (format-message
- "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
projects / emacs.git / commitdiff