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[Emacs-diffs] Changes to emacs/lisp/gnus/nndraft.el [gnus-5_10-branch]
From: |
Andreas Schwab |
Subject: |
[Emacs-diffs] Changes to emacs/lisp/gnus/nndraft.el [gnus-5_10-branch] |
Date: |
Thu, 22 Jul 2004 13:12:26 -0400 |
Index: emacs/lisp/gnus/nndraft.el
diff -c /dev/null emacs/lisp/gnus/nndraft.el:1.4.2.1
*** /dev/null Thu Jul 22 16:47:10 2004
--- emacs/lisp/gnus/nndraft.el Thu Jul 22 16:45:51 2004
***************
*** 0 ****
--- 1,311 ----
+ ;;; nndraft.el --- draft article access for Gnus
+
+ ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2003
+ ;; Free Software Foundation, Inc.
+
+ ;; Author: Lars Magne Ingebrigtsen <address@hidden>
+ ;; 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 2, 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; see the file COPYING. If not, write to the
+ ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ ;; Boston, MA 02111-1307, USA.
+
+ ;;; Commentary:
+
+ ;;; Code:
+
+ (require 'nnheader)
+ (require 'nnmail)
+ (require 'gnus-start)
+ (require 'nnmh)
+ (require 'nnoo)
+ (require 'mm-util)
+ (eval-when-compile (require 'cl))
+
+ (nnoo-declare nndraft
+ nnmh)
+
+ (defvoo nndraft-directory (nnheader-concat gnus-directory "drafts/")
+ "Where nndraft will store its files."
+ nnmh-directory)
+
+
+
+ (defvoo nndraft-current-group "" nil nnmh-current-group)
+ (defvoo nndraft-get-new-mail nil nil nnmh-get-new-mail)
+ (defvoo nndraft-current-directory nil nil nnmh-current-directory)
+
+ (defconst nndraft-version "nndraft 1.0")
+ (defvoo nndraft-status-string "" nil nnmh-status-string)
+
+
+
+ ;;; Interface functions.
+
+ (nnoo-define-basics nndraft)
+
+ (deffoo nndraft-open-server (server &optional defs)
+ (nnoo-change-server 'nndraft server defs)
+ (cond
+ ((not (file-exists-p nndraft-directory))
+ (nndraft-close-server)
+ (nnheader-report 'nndraft "No such file or directory: %s"
+ nndraft-directory))
+ ((not (file-directory-p (file-truename nndraft-directory)))
+ (nndraft-close-server)
+ (nnheader-report 'nndraft "Not a directory: %s" nndraft-directory))
+ (t
+ (nnheader-report 'nndraft "Opened server %s using directory %s"
+ server nndraft-directory)
+ t)))
+
+ (deffoo nndraft-retrieve-headers (articles &optional group server fetch-old)
+ (nndraft-possibly-change-group group)
+ (save-excursion
+ (set-buffer nntp-server-buffer)
+ (erase-buffer)
+ (let* (article)
+ ;; We don't support fetching by Message-ID.
+ (if (stringp (car articles))
+ 'headers
+ (while articles
+ (narrow-to-region (point) (point))
+ (when (nndraft-request-article
+ (setq article (pop articles)) group server (current-buffer))
+ (goto-char (point-min))
+ (if (search-forward "\n\n" nil t)
+ (forward-line -1)
+ (goto-char (point-max)))
+ (delete-region (point) (point-max))
+ (goto-char (point-min))
+ (insert (format "221 %d Article retrieved.\n" article))
+ (widen)
+ (goto-char (point-max))
+ (insert ".\n")))
+
+ (nnheader-fold-continuation-lines)
+ 'headers))))
+
+ (deffoo nndraft-request-article (id &optional group server buffer)
+ (nndraft-possibly-change-group group)
+ (when (numberp id)
+ ;; We get the newest file of the auto-saved file and the
+ ;; "real" file.
+ (let* ((file (nndraft-article-filename id))
+ (auto (nndraft-auto-save-file-name file))
+ (newest (if (file-newer-than-file-p file auto) file auto))
+ (nntp-server-buffer (or buffer nntp-server-buffer)))
+ (when (and (file-exists-p newest)
+ (let ((nnmail-file-coding-system
+ (if (file-newer-than-file-p file auto)
+ (if (member group '("drafts" "delayed"))
+ message-draft-coding-system
+ mm-text-coding-system)
+ mm-auto-save-coding-system)))
+ (nnmail-find-file newest)))
+ (save-excursion
+ (set-buffer nntp-server-buffer)
+ (goto-char (point-min))
+ ;; If there's a mail header separator in this file,
+ ;; we remove it.
+ (when (re-search-forward
+ (concat "^" (regexp-quote mail-header-separator) "$") nil t)
+ (replace-match "" t t)))
+ t))))
+
+ (deffoo nndraft-request-restore-buffer (article &optional group server)
+ "Request a new buffer that is restored to the state of ARTICLE."
+ (nndraft-possibly-change-group group)
+ (when (nndraft-request-article article group server (current-buffer))
+ (message-remove-header "xref")
+ (message-remove-header "lines")
+ ;; Articles in nndraft:queue are considered as sent messages. The
+ ;; Date field should be the time when they are sent.
+ ;;(message-remove-header "date")
+ t))
+
+ (deffoo nndraft-request-update-info (group info &optional server)
+ (nndraft-possibly-change-group group)
+ (gnus-info-set-read
+ info
+ (gnus-update-read-articles (gnus-group-prefixed-name group '(nndraft ""))
+ (nndraft-articles) t))
+ (let ((marks (nth 3 info)))
+ (when marks
+ ;; Nix out all marks except the `unsend'-able article marks.
+ (setcar (nthcdr 3 info)
+ (if (assq 'unsend marks)
+ (list (assq 'unsend marks))
+ nil))))
+ t)
+
+ (defun nndraft-generate-headers ()
+ (save-excursion
+ (message-generate-headers
+ (message-headers-to-generate
+ message-required-headers message-draft-headers nil))))
+
+ (deffoo nndraft-request-associate-buffer (group)
+ "Associate the current buffer with some article in the draft group."
+ (nndraft-open-server "")
+ (nndraft-request-group group)
+ (nndraft-possibly-change-group group)
+ (let ((gnus-verbose-backends nil)
+ (buf (current-buffer))
+ article file)
+ (with-temp-buffer
+ (insert-buffer-substring buf)
+ (setq article (nndraft-request-accept-article
+ group (nnoo-current-server 'nndraft) t 'noinsert)
+ file (nndraft-article-filename article)))
+ (setq buffer-file-name (expand-file-name file)
+ buffer-auto-save-file-name (make-auto-save-file-name))
+ (clear-visited-file-modtime)
+ (make-local-variable 'write-contents-hooks)
+ (push 'nndraft-generate-headers write-contents-hooks)
+ article))
+
+ (deffoo nndraft-request-group (group &optional server dont-check)
+ (nndraft-possibly-change-group group)
+ (unless dont-check
+ (let* ((pathname (nnmail-group-pathname group nndraft-directory))
+ (file-name-coding-system nnmail-pathname-coding-system)
+ dir file)
+ (nnheader-re-read-dir pathname)
+ (setq dir (mapcar (lambda (name) (string-to-int (substring name 1)))
+ (ignore-errors (directory-files
+ pathname nil "^#[0-9]+#$" t))))
+ (dolist (n dir)
+ (unless (file-exists-p
+ (setq file (expand-file-name (int-to-string n) pathname)))
+ (rename-file (nndraft-auto-save-file-name file) file)))))
+ (nnoo-parent-function 'nndraft
+ 'nnmh-request-group
+ (list group server dont-check)))
+
+ (deffoo nndraft-request-move-article (article group server
+ accept-form &optional last)
+ (nndraft-possibly-change-group group)
+ (let ((buf (get-buffer-create " *nndraft move*"))
+ result)
+ (and
+ (nndraft-request-article article group server)
+ (save-excursion
+ (set-buffer buf)
+ (erase-buffer)
+ (insert-buffer-substring nntp-server-buffer)
+ (setq result (eval accept-form))
+ (kill-buffer (current-buffer))
+ result)
+ (null (nndraft-request-expire-articles (list article) group server
'force))
+ result)))
+
+ (deffoo nndraft-request-expire-articles (articles group &optional server
force)
+ (nndraft-possibly-change-group group)
+ (let* ((nnmh-allow-delete-final t)
+ (res (nnoo-parent-function 'nndraft
+ 'nnmh-request-expire-articles
+ (list articles group server force)))
+ article)
+ ;; Delete all the "state" files of articles that have been expired.
+ (while articles
+ (unless (memq (setq article (pop articles)) res)
+ (let ((auto (nndraft-auto-save-file-name
+ (nndraft-article-filename article))))
+ (when (file-exists-p auto)
+ (funcall nnmail-delete-file-function auto)))
+ (dolist (backup
+ (let ((kept-new-versions 1)
+ (kept-old-versions 0))
+ (find-backup-file-name
+ (nndraft-article-filename article))))
+ (when (file-exists-p backup)
+ (funcall nnmail-delete-file-function backup)))))
+ res))
+
+ (deffoo nndraft-request-accept-article (group &optional server last noinsert)
+ (nndraft-possibly-change-group group)
+ (let ((gnus-verbose-backends nil))
+ (nnoo-parent-function 'nndraft 'nnmh-request-accept-article
+ (list group server last noinsert))))
+
+ (deffoo nndraft-request-replace-article (article group buffer)
+ (nndraft-possibly-change-group group)
+ (let ((nnmail-file-coding-system
+ (if (member group '("drafts" "delayed"))
+ message-draft-coding-system
+ mm-text-coding-system)))
+ (nnoo-parent-function 'nndraft 'nnmh-request-replace-article
+ (list article group buffer))))
+
+ (deffoo nndraft-request-create-group (group &optional server args)
+ (nndraft-possibly-change-group group)
+ (if (file-exists-p nndraft-current-directory)
+ (if (file-directory-p nndraft-current-directory)
+ t
+ nil)
+ (condition-case ()
+ (progn
+ (gnus-make-directory nndraft-current-directory)
+ t)
+ (file-error nil))))
+
+
+ ;;; Low-Level Interface
+
+ (defun nndraft-possibly-change-group (group)
+ (when (and group
+ (not (equal group nndraft-current-group)))
+ (nndraft-open-server "")
+ (setq nndraft-current-group group)
+ (setq nndraft-current-directory
+ (nnheader-concat nndraft-directory group))))
+
+ (defun nndraft-article-filename (article &rest args)
+ (apply 'concat
+ (file-name-as-directory nndraft-current-directory)
+ (int-to-string article)
+ args))
+
+ (defun nndraft-auto-save-file-name (file)
+ (save-excursion
+ (prog1
+ (progn
+ (set-buffer (get-buffer-create " *draft tmp*"))
+ (setq buffer-file-name file)
+ (make-auto-save-file-name))
+ (kill-buffer (current-buffer)))))
+
+ (defun nndraft-articles ()
+ "Return the list of messages in the group."
+ (gnus-make-directory nndraft-current-directory)
+ (sort
+ (mapcar 'string-to-int
+ (directory-files nndraft-current-directory nil "\\`[0-9]+\\'" t))
+ '<))
+
+ (nnoo-import nndraft
+ (nnmh
+ nnmh-retrieve-headers
+ nnmh-request-group
+ nnmh-close-group
+ nnmh-request-list
+ nnmh-request-newsgroups))
+
+ (provide 'nndraft)
+
+ ;;; arch-tag: 3ce26ca0-41cb-48b1-8703-4dad35e188aa
+ ;;; nndraft.el ends here
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