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- ;;; nnml.el --- mail spool access for Gnus
- ;; Copyright (C) 1995,96,97 Free Software Foundation, Inc.
-
- ;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
- ;; Masanobu UMEDA <umerin@flab.flab.fujitsu.junet>
- ;; Keywords: news, mail
-
- ;; 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:
-
- ;; Based on nnspool.el by Masanobu UMEDA <umerin@flab.flab.fujitsu.junet>.
- ;; For an overview of what the interface functions do, please see the
- ;; Gnus sources.
-
- ;;; Code:
-
- (require 'nnheader)
- (require 'nnmail)
- (require 'nnoo)
- (eval-when-compile (require 'cl))
-
- (nnoo-declare nnml)
-
- (defvoo nnml-directory message-directory
- "Spool directory for the nnml mail backend.")
-
- (defvoo nnml-active-file
- (concat (file-name-as-directory nnml-directory) "active")
- "Mail active file.")
-
- (defvoo nnml-newsgroups-file
- (concat (file-name-as-directory nnml-directory) "newsgroups")
- "Mail newsgroups description file.")
-
- (defvoo nnml-get-new-mail t
- "If non-nil, nnml will check the incoming mail file and split the mail.")
-
- (defvoo nnml-nov-is-evil nil
- "If non-nil, Gnus will never generate and use nov databases for mail groups.
- Using nov databases will speed up header fetching considerably.
- This variable shouldn't be flipped much. If you have, for some reason,
- set this to t, and want to set it to nil again, you should always run
- the `nnml-generate-nov-databases' command. The function will go
- through all nnml directories and generate nov databases for them
- all. This may very well take some time.")
-
- (defvoo nnml-prepare-save-mail-hook nil
- "Hook run narrowed to an article before saving.")
-
- (defvoo nnml-inhibit-expiry nil
- "If non-nil, inhibit expiry.")
-
-
-
-
- (defconst nnml-version "nnml 1.0"
- "nnml version.")
-
- (defvoo nnml-nov-file-name ".overview")
-
- (defvoo nnml-current-directory nil)
- (defvoo nnml-current-group nil)
- (defvoo nnml-status-string "")
- (defvoo nnml-nov-buffer-alist nil)
- (defvoo nnml-group-alist nil)
- (defvoo nnml-active-timestamp nil)
- (defvoo nnml-article-file-alist nil)
-
- (defvoo nnml-generate-active-function 'nnml-generate-active-info)
-
-
-
- ;;; Interface functions.
-
- (nnoo-define-basics nnml)
-
- (deffoo nnml-retrieve-headers (sequence &optional group server fetch-old)
- (when (nnml-possibly-change-directory group server)
- (save-excursion
- (set-buffer nntp-server-buffer)
- (erase-buffer)
- (let ((file nil)
- (number (length sequence))
- (count 0)
- ;; 1997/8/12 by MORIOKA Tomohiko
- ;; for XEmacs/mule.
- (pathname-coding-system 'binary)
- beg article)
- (if (stringp (car sequence))
- 'headers
- (if (nnml-retrieve-headers-with-nov sequence fetch-old)
- 'nov
- (while sequence
- (setq article (car sequence))
- (setq file (nnml-article-to-file article))
- (when (and file
- (file-exists-p file)
- (not (file-directory-p file)))
- (insert (format "221 %d Article retrieved.\n" article))
- (setq beg (point))
- (nnheader-insert-head file)
- (goto-char beg)
- (if (search-forward "\n\n" nil t)
- (forward-char -1)
- (goto-char (point-max))
- (insert "\n\n"))
- (insert ".\n")
- (delete-region (point) (point-max)))
- (setq sequence (cdr sequence))
- (setq count (1+ count))
- (and (numberp nnmail-large-newsgroup)
- (> number nnmail-large-newsgroup)
- (zerop (% count 20))
- (nnheader-message 6 "nnml: Receiving headers... %d%%"
- (/ (* count 100) number))))
-
- (and (numberp nnmail-large-newsgroup)
- (> number nnmail-large-newsgroup)
- (nnheader-message 6 "nnml: Receiving headers...done"))
-
- (nnheader-fold-continuation-lines)
- 'headers))))))
-
- (deffoo nnml-open-server (server &optional defs)
- (nnoo-change-server 'nnml server defs)
- (when (not (file-exists-p nnml-directory))
- (condition-case ()
- (make-directory nnml-directory t)
- (error)))
- (cond
- ((not (file-exists-p nnml-directory))
- (nnml-close-server)
- (nnheader-report 'nnml "Couldn't create directory: %s" nnml-directory))
- ((not (file-directory-p (file-truename nnml-directory)))
- (nnml-close-server)
- (nnheader-report 'nnml "Not a directory: %s" nnml-directory))
- (t
- (nnheader-report 'nnml "Opened server %s using directory %s"
- server nnml-directory)
- t)))
-
- (defun nnml-request-regenerate (server)
- (nnml-possibly-change-directory nil server)
- (nnml-generate-nov-databases)
- t)
-
- (deffoo nnml-request-article (id &optional group server buffer)
- (nnml-possibly-change-directory group server)
- (let* ((nntp-server-buffer (or buffer nntp-server-buffer))
- ;; 1997/8/12 by MORIOKA Tomohiko
- ;; for XEmacs/mule.
- (pathname-coding-system 'binary)
- path gpath group-num)
- (if (stringp id)
- (when (and (setq group-num (nnml-find-group-number id))
- (cdr
- (assq (cdr group-num)
- (nnheader-article-to-file-alist
- (setq gpath
- (nnmail-group-pathname
- (car group-num)
- nnml-directory))))))
- (setq path (concat gpath (int-to-string (cdr group-num)))))
- (setq path (nnml-article-to-file id)))
- (cond
- ((not path)
- (nnheader-report 'nnml "No such article: %s" id))
- ((not (file-exists-p path))
- (nnheader-report 'nnml "No such file: %s" path))
- ((file-directory-p path)
- (nnheader-report 'nnml "File is a directory: %s" path))
- ((not (save-excursion (nnmail-find-file path)))
- (nnheader-report 'nnml "Couldn't read file: %s" path))
- (t
- (nnheader-report 'nnml "Article %s retrieved" id)
- ;; We return the article number.
- (cons (if group-num (car group-num) group)
- (string-to-int (file-name-nondirectory path)))))))
-
- (deffoo nnml-request-group (group &optional server dont-check)
- ;; 1997/8/12 by MORIOKA Tomohiko
- ;; for XEmacs/mule.
- (let ((pathname-coding-system 'binary))
- (cond
- ((not (nnml-possibly-change-directory group server))
- (nnheader-report 'nnml "Invalid group (no such directory)"))
- ((not (file-exists-p nnml-current-directory))
- (nnheader-report 'nnml "Directory %s does not exist"
- nnml-current-directory))
- ((not (file-directory-p nnml-current-directory))
- (nnheader-report 'nnml "%s is not a directory" nnml-current-directory))
- (dont-check
- (nnheader-report 'nnml "Group %s selected" group)
- t)
- (t
- (nnheader-re-read-dir nnml-current-directory)
- (nnmail-activate 'nnml)
- (let ((active (nth 1 (assoc group nnml-group-alist))))
- (if (not active)
- (nnheader-report 'nnml "No such group: %s" group)
- (nnheader-report 'nnml "Selected group %s" group)
- (nnheader-insert "211 %d %d %d %s\n"
- (max (1+ (- (cdr active) (car active))) 0)
- (car active) (cdr active) group)))))))
-
- (deffoo nnml-request-scan (&optional group server)
- (setq nnml-article-file-alist nil)
- (nnml-possibly-change-directory group server)
- (nnmail-get-new-mail 'nnml 'nnml-save-nov nnml-directory group))
-
- (deffoo nnml-close-group (group &optional server)
- (setq nnml-article-file-alist nil)
- t)
-
- (deffoo nnml-request-create-group (group &optional server args)
- (nnmail-activate 'nnml)
- (unless (assoc group nnml-group-alist)
- (let (active)
- (push (list group (setq active (cons 1 0)))
- nnml-group-alist)
- (nnml-possibly-create-directory group)
- (nnml-possibly-change-directory group server)
- (let ((articles (nnheader-directory-articles nnml-current-directory)))
- (when articles
- (setcar active (apply 'min articles))
- (setcdr active (apply 'max articles))))
- (nnmail-save-active nnml-group-alist nnml-active-file)))
- t)
-
- (deffoo nnml-request-list (&optional server)
- (save-excursion
- ;; 1997/8/12 by MORIOKA Tomohiko
- ;; for XEmacs/mule.
- (let ((nnmail-file-coding-system nnmail-active-file-coding-system)
- (pathname-coding-system 'binary)) ; for XEmacs/mule
- (nnmail-find-file nnml-active-file)
- )
- (setq nnml-group-alist (nnmail-get-active))
- t))
-
- (deffoo nnml-request-newgroups (date &optional server)
- (nnml-request-list server))
-
- (deffoo nnml-request-list-newsgroups (&optional server)
- (save-excursion
- (nnmail-find-file nnml-newsgroups-file)))
-
- (deffoo nnml-request-expire-articles (articles group
- &optional server force)
- (nnml-possibly-change-directory group server)
- (let* ((active-articles
- (nnheader-directory-articles nnml-current-directory))
- (is-old t)
- article rest mod-time number)
- (nnmail-activate 'nnml)
-
- (while (and articles is-old)
- (when (setq article (nnml-article-to-file (setq number (pop articles))))
- (when (setq mod-time (nth 5 (file-attributes article)))
- (if (and (nnml-deletable-article-p group number)
- (setq is-old
- (nnmail-expired-article-p group mod-time force
- nnml-inhibit-expiry)))
- (progn
- (nnheader-message 5 "Deleting article %s in %s"
- article group)
- (condition-case ()
- (funcall nnmail-delete-file-function article)
- (file-error
- (push number rest)))
- (setq active-articles (delq number active-articles))
- (nnml-nov-delete-article group number))
- (push number rest)))))
- (let ((active (nth 1 (assoc group nnml-group-alist))))
- (when active
- (setcar active (or (and active-articles
- (apply 'min active-articles))
- (1+ (cdr active)))))
- (nnmail-save-active nnml-group-alist nnml-active-file))
- (nnml-save-nov)
- (nconc rest articles)))
-
- (deffoo nnml-request-move-article
- (article group server accept-form &optional last)
- (let ((buf (get-buffer-create " *nnml move*"))
- result)
- (nnml-possibly-change-directory group server)
- (nnml-update-file-alist)
- (and
- (nnml-deletable-article-p group article)
- (nnml-request-article article group server)
- (save-excursion
- (set-buffer buf)
- (insert-buffer-substring nntp-server-buffer)
- (setq result (eval accept-form))
- (kill-buffer (current-buffer))
- result)
- (progn
- (nnml-possibly-change-directory group server)
- (condition-case ()
- (funcall nnmail-delete-file-function
- (nnml-article-to-file article))
- (file-error nil))
- (nnml-nov-delete-article group article)
- (when last
- (nnml-save-nov)
- (nnmail-save-active nnml-group-alist nnml-active-file))))
- result))
-
- (deffoo nnml-request-accept-article (group &optional server last)
- (nnml-possibly-change-directory group server)
- (nnmail-check-syntax)
- (let (result)
- (when nnmail-cache-accepted-message-ids
- (nnmail-cache-insert (nnmail-fetch-field "message-id")))
- (if (stringp group)
- (and
- (nnmail-activate 'nnml)
- (setq result (car (nnml-save-mail
- (list (cons group (nnml-active-number group))))))
- (progn
- (nnmail-save-active nnml-group-alist nnml-active-file)
- (and last (nnml-save-nov))))
- (and
- (nnmail-activate 'nnml)
- (if (and (not (setq result (nnmail-article-group 'nnml-active-number)))
- (yes-or-no-p "Moved to `junk' group; delete article? "))
- (setq result 'junk)
- (setq result (car (nnml-save-mail result))))
- (when last
- (nnmail-save-active nnml-group-alist nnml-active-file)
- (when nnmail-cache-accepted-message-ids
- (nnmail-cache-close))
- (nnml-save-nov))))
- result))
-
- (deffoo nnml-request-replace-article (article group buffer)
- (nnml-possibly-change-directory group)
- (save-excursion
- (set-buffer buffer)
- (nnml-possibly-create-directory group)
- (let ((chars (nnmail-insert-lines))
- (art (concat (int-to-string article) "\t"))
- headers)
- (when (condition-case ()
- (progn
- (nnmail-write-region
- (point-min) (point-max)
- (or (nnml-article-to-file article)
- (concat nnml-current-directory
- (int-to-string article)))
- nil (if (nnheader-be-verbose 5) nil 'nomesg))
- t)
- (error nil))
- (setq headers (nnml-parse-head chars article))
- ;; Replace the NOV line in the NOV file.
- (save-excursion
- (set-buffer (nnml-open-nov group))
- (goto-char (point-min))
- (if (or (looking-at art)
- (search-forward (concat "\n" art) nil t))
- ;; Delete the old NOV line.
- (delete-region (progn (beginning-of-line) (point))
- (progn (forward-line 1) (point)))
- ;; The line isn't here, so we have to find out where
- ;; we should insert it. (This situation should never
- ;; occur, but one likes to make sure...)
- (while (and (looking-at "[0-9]+\t")
- (< (string-to-int
- (buffer-substring
- (match-beginning 0) (match-end 0)))
- article)
- (zerop (forward-line 1)))))
- (beginning-of-line)
- (nnheader-insert-nov headers)
- (nnml-save-nov)
- t)))))
-
- (deffoo nnml-request-delete-group (group &optional force server)
- (nnml-possibly-change-directory group server)
- (when force
- ;; Delete all articles in GROUP.
- (let ((articles
- (directory-files
- nnml-current-directory t
- (concat nnheader-numerical-short-files
- "\\|" (regexp-quote nnml-nov-file-name) "$")))
- article)
- (while articles
- (setq article (pop articles))
- (when (file-writable-p article)
- (nnheader-message 5 "Deleting article %s in %s..." article group)
- (funcall nnmail-delete-file-function article))))
- ;; Try to delete the directory itself.
- (condition-case ()
- (delete-directory nnml-current-directory)
- (error nil)))
- ;; Remove the group from all structures.
- (setq nnml-group-alist
- (delq (assoc group nnml-group-alist) nnml-group-alist)
- nnml-current-group nil
- nnml-current-directory nil)
- ;; Save the active file.
- (nnmail-save-active nnml-group-alist nnml-active-file)
- t)
-
- (deffoo nnml-request-rename-group (group new-name &optional server)
- (nnml-possibly-change-directory group server)
- (let ((new-dir (nnmail-group-pathname new-name nnml-directory))
- (old-dir (nnmail-group-pathname group nnml-directory)))
- (when (condition-case ()
- (progn
- (make-directory new-dir t)
- t)
- (error nil))
- ;; We move the articles file by file instead of renaming
- ;; the directory -- there may be subgroups in this group.
- ;; One might be more clever, I guess.
- (let ((files (nnheader-article-to-file-alist old-dir)))
- (while files
- (rename-file
- (concat old-dir (cdar files))
- (concat new-dir (cdar files)))
- (pop files)))
- ;; Move .overview file.
- (let ((overview (concat old-dir nnml-nov-file-name)))
- (when (file-exists-p overview)
- (rename-file overview (concat new-dir nnml-nov-file-name))))
- (when (<= (length (directory-files old-dir)) 2)
- (condition-case ()
- (delete-directory old-dir)
- (error nil)))
- ;; That went ok, so we change the internal structures.
- (let ((entry (assoc group nnml-group-alist)))
- (when entry
- (setcar entry new-name))
- (setq nnml-current-directory nil
- nnml-current-group nil)
- ;; Save the new group alist.
- (nnmail-save-active nnml-group-alist nnml-active-file)
- t))))
-
- (deffoo nnml-set-status (article name value &optional group server)
- (nnml-possibly-change-directory group server)
- (let ((file (nnml-article-to-file article)))
- (cond
- ((not (file-exists-p file))
- (nnheader-report 'nnml "File %s does not exist" file))
- (t
- (nnheader-temp-write file
- (nnheader-insert-file-contents file)
- (nnmail-replace-status name value))
- t))))
-
-
- ;;; Internal functions.
-
- (defun nnml-article-to-file (article)
- (nnml-update-file-alist)
- (let (file)
- (if (setq file (cdr (assq article nnml-article-file-alist)))
- (concat nnml-current-directory file)
- ;; Just to make sure nothing went wrong when reading over NFS --
- ;; check once more.
- (when (file-exists-p
- (setq file (concat nnml-current-directory "/"
- (number-to-string article))))
- (nnml-update-file-alist t)
- file))))
-
- (defun nnml-deletable-article-p (group article)
- "Say whether ARTICLE in GROUP can be deleted."
- (let (path)
- (when (setq path (nnml-article-to-file article))
- (when (file-writable-p path)
- (or (not nnmail-keep-last-article)
- (not (eq (cdr (nth 1 (assoc group nnml-group-alist)))
- article)))))))
-
- ;; Find an article number in the current group given the Message-ID.
- (defun nnml-find-group-number (id)
- (save-excursion
- (set-buffer (get-buffer-create " *nnml id*"))
- (buffer-disable-undo (current-buffer))
- (let ((alist nnml-group-alist)
- number)
- ;; We want to look through all .overview files, but we want to
- ;; start with the one in the current directory. It seems most
- ;; likely that the article we are looking for is in that group.
- (if (setq number (nnml-find-id nnml-current-group id))
- (cons nnml-current-group number)
- ;; It wasn't there, so we look through the other groups as well.
- (while (and (not number)
- alist)
- (or (string= (caar alist) nnml-current-group)
- (setq number (nnml-find-id (caar alist) id)))
- (or number
- (setq alist (cdr alist))))
- (and number
- (cons (caar alist) number))))))
-
- (defun nnml-find-id (group id)
- (erase-buffer)
- (let ((nov (concat (nnmail-group-pathname group nnml-directory)
- nnml-nov-file-name))
- number found)
- (when (file-exists-p nov)
- (nnheader-insert-file-contents nov)
- (while (and (not found)
- (search-forward id nil t)) ; We find the ID.
- ;; And the id is in the fourth field.
- (if (not (and (search-backward "\t" nil t 4)
- (not (search-backward"\t" (gnus-point-at-bol) t))))
- (forward-line 1)
- (beginning-of-line)
- (setq found t)
- ;; We return the article number.
- (setq number
- (condition-case ()
- (read (current-buffer))
- (error nil)))))
- number)))
-
- (defun nnml-retrieve-headers-with-nov (articles &optional fetch-old)
- (if (or gnus-nov-is-evil nnml-nov-is-evil)
- nil
- (let ((nov (concat nnml-current-directory nnml-nov-file-name)))
- (when (file-exists-p nov)
- (save-excursion
- (set-buffer nntp-server-buffer)
- (erase-buffer)
- (nnheader-insert-file-contents nov)
- (if (and fetch-old
- (not (numberp fetch-old)))
- t ; Don't remove anything.
- (nnheader-nov-delete-outside-range
- (if fetch-old (max 1 (- (car articles) fetch-old))
- (car articles))
- (car (last articles)))
- t))))))
-
- (defun nnml-possibly-change-directory (group &optional server)
- (when (and server
- (not (nnml-server-opened server)))
- (nnml-open-server server))
- (if (not group)
- t
- (let ((pathname (nnmail-group-pathname group nnml-directory))
- ;; 1997/8/14 by MORIOKA Tomohiko
- ;; for XEmacs/mule.
- (pathname-coding-system 'binary))
- (when (not (equal pathname nnml-current-directory))
- (setq nnml-current-directory pathname
- nnml-current-group group
- nnml-article-file-alist nil))
- (file-exists-p nnml-current-directory))))
-
- (defun nnml-possibly-create-directory (group)
- (let (dir dirs)
- (setq dir (nnmail-group-pathname group nnml-directory))
- (while (not (file-directory-p dir))
- (push dir dirs)
- (setq dir (file-name-directory (directory-file-name dir))))
- (while dirs
- (make-directory (directory-file-name (car dirs)))
- (nnheader-message 5 "Creating mail directory %s" (car dirs))
- (setq dirs (cdr dirs)))))
-
- (defun nnml-save-mail (group-art)
- "Called narrowed to an article."
- (let (chars headers)
- (setq chars (nnmail-insert-lines))
- (nnmail-insert-xref group-art)
- (run-hooks 'nnmail-prepare-save-mail-hook)
- (run-hooks 'nnml-prepare-save-mail-hook)
- (goto-char (point-min))
- (while (looking-at "From ")
- (replace-match "X-From-Line: ")
- (forward-line 1))
- ;; We save the article in all the groups it belongs in.
- (let ((ga group-art)
- first)
- (while ga
- (nnml-possibly-create-directory (caar ga))
- (let ((file (concat (nnmail-group-pathname
- (caar ga) nnml-directory)
- (int-to-string (cdar ga)))))
- (if first
- ;; It was already saved, so we just make a hard link.
- (funcall nnmail-crosspost-link-function first file t)
- ;; Save the article.
- (nnmail-write-region (point-min) (point-max) file nil
- (if (nnheader-be-verbose 5) nil 'nomesg))
- (setq first file)))
- (setq ga (cdr ga))))
- ;; Generate a nov line for this article. We generate the nov
- ;; line after saving, because nov generation destroys the
- ;; header.
- (setq headers (nnml-parse-head chars))
- ;; Output the nov line to all nov databases that should have it.
- (let ((ga group-art))
- (while ga
- (nnml-add-nov (caar ga) (cdar ga) headers)
- (setq ga (cdr ga))))
- group-art))
-
- (defun nnml-active-number (group)
- "Compute the next article number in GROUP."
- (let ((active (cadr (assoc group nnml-group-alist))))
- ;; The group wasn't known to nnml, so we just create an active
- ;; entry for it.
- (unless active
- ;; Perhaps the active file was corrupt? See whether
- ;; there are any articles in this group.
- (nnml-possibly-create-directory group)
- (nnml-possibly-change-directory group)
- (unless nnml-article-file-alist
- (setq nnml-article-file-alist
- (sort
- (nnheader-article-to-file-alist nnml-current-directory)
- (lambda (a1 a2) (< (car a1) (car a2))))))
- (setq active
- (if nnml-article-file-alist
- (cons (caar nnml-article-file-alist)
- (caar (last nnml-article-file-alist)))
- (cons 1 0)))
- (push (list group active) nnml-group-alist))
- (setcdr active (1+ (cdr active)))
- (while (file-exists-p
- (concat (nnmail-group-pathname group nnml-directory)
- (int-to-string (cdr active))))
- (setcdr active (1+ (cdr active))))
- (cdr active)))
-
- (defun nnml-add-nov (group article headers)
- "Add a nov line for the GROUP base."
- (save-excursion
- (set-buffer (nnml-open-nov group))
- (goto-char (point-max))
- (mail-header-set-number headers article)
- (nnheader-insert-nov headers)))
-
- (defsubst nnml-header-value ()
- (buffer-substring (match-end 0) (progn (end-of-line) (point))))
-
- (defun nnml-parse-head (chars &optional number)
- "Parse the head of the current buffer."
- (save-excursion
- (save-restriction
- (goto-char (point-min))
- (narrow-to-region
- (point)
- (1- (or (search-forward "\n\n" nil t) (point-max))))
- ;; Fold continuation lines.
- (goto-char (point-min))
- (while (re-search-forward "\\(\r?\n[ \t]+\\)+" nil t)
- (replace-match " " t t))
- ;; Remove any tabs; they are too confusing.
- (subst-char-in-region (point-min) (point-max) ?\t ? )
- (let ((headers (nnheader-parse-head t)))
- (mail-header-set-chars headers chars)
- (mail-header-set-number headers number)
- headers))))
-
- (defun nnml-open-nov (group)
- (or (cdr (assoc group nnml-nov-buffer-alist))
- (let ((buffer (nnheader-find-file-noselect
- (concat (nnmail-group-pathname group nnml-directory)
- nnml-nov-file-name))))
- (save-excursion
- (set-buffer buffer)
- (buffer-disable-undo (current-buffer)))
- (push (cons group buffer) nnml-nov-buffer-alist)
- buffer)))
-
- (defun nnml-save-nov ()
- (save-excursion
- (while nnml-nov-buffer-alist
- (when (buffer-name (cdar nnml-nov-buffer-alist))
- (set-buffer (cdar nnml-nov-buffer-alist))
- (when (buffer-modified-p)
- (nnmail-write-region 1 (point-max) (buffer-file-name) nil 'nomesg))
- (set-buffer-modified-p nil)
- (kill-buffer (current-buffer)))
- (setq nnml-nov-buffer-alist (cdr nnml-nov-buffer-alist)))))
-
- ;;;###autoload
- (defun nnml-generate-nov-databases ()
- "Generate NOV databases in all nnml directories."
- (interactive)
- ;; Read the active file to make sure we don't re-use articles
- ;; numbers in empty groups.
- (nnmail-activate 'nnml)
- (nnml-open-server (or (nnoo-current-server 'nnml) ""))
- (setq nnml-directory (expand-file-name nnml-directory))
- ;; Recurse down the directories.
- (nnml-generate-nov-databases-1 nnml-directory nil t)
- ;; Save the active file.
- (nnmail-save-active nnml-group-alist nnml-active-file))
-
- (defun nnml-generate-nov-databases-1 (dir &optional seen no-active)
- "Regenerate the NOV database in DIR."
- (interactive "DRegenerate NOV in: ")
- (setq dir (file-name-as-directory dir))
- ;; Only scan this sub-tree if we haven't been here yet.
- (unless (member (file-truename dir) seen)
- (push (file-truename dir) seen)
- ;; We descend recursively
- (let ((dirs (directory-files dir t nil t))
- dir)
- (while (setq dir (pop dirs))
- (when (and (not (member (file-name-nondirectory dir) '("." "..")))
- (file-directory-p dir))
- (nnml-generate-nov-databases-1 dir seen))))
- ;; Do this directory.
- (let ((files (sort (nnheader-article-to-file-alist dir)
- (lambda (a b) (< (car a) (car b))))))
- (when files
- (funcall nnml-generate-active-function dir)
- ;; Generate the nov file.
- (nnml-generate-nov-file dir files)
- (unless no-active
- (nnmail-save-active nnml-group-alist nnml-active-file))))))
-
- (defvar files)
- (defun nnml-generate-active-info (dir)
- ;; Update the active info for this group.
- (let ((group (nnheader-file-to-group
- (directory-file-name dir) nnml-directory)))
- (setq nnml-group-alist
- (delq (assoc group nnml-group-alist) nnml-group-alist))
- (push (list group
- (cons (caar files)
- (let ((f files))
- (while (cdr f) (setq f (cdr f)))
- (caar f))))
- nnml-group-alist)))
-
- (defun nnml-generate-nov-file (dir files)
- (let* ((dir (file-name-as-directory dir))
- (nov (concat dir nnml-nov-file-name))
- (nov-buffer (get-buffer-create " *nov*"))
- chars file headers)
- (save-excursion
- ;; Init the nov buffer.
- (set-buffer nov-buffer)
- (buffer-disable-undo (current-buffer))
- (erase-buffer)
- (set-buffer nntp-server-buffer)
- ;; Delete the old NOV file.
- (when (file-exists-p nov)
- (funcall nnmail-delete-file-function nov))
- (while files
- (unless (file-directory-p (setq file (concat dir (cdar files))))
- (erase-buffer)
- (nnheader-insert-file-contents file)
- (narrow-to-region
- (goto-char (point-min))
- (progn
- (search-forward "\n\n" nil t)
- (setq chars (- (point-max) (point)))
- (max 1 (1- (point)))))
- (unless (zerop (buffer-size))
- (goto-char (point-min))
- (setq headers (nnml-parse-head chars (caar files)))
- (save-excursion
- (set-buffer nov-buffer)
- (goto-char (point-max))
- (nnheader-insert-nov headers)))
- (widen))
- (setq files (cdr files)))
- (save-excursion
- (set-buffer nov-buffer)
- (nnmail-write-region 1 (point-max) nov nil 'nomesg)
- (kill-buffer (current-buffer))))))
-
- (defun nnml-nov-delete-article (group article)
- (save-excursion
- (set-buffer (nnml-open-nov group))
- (when (nnheader-find-nov-line article)
- (delete-region (point) (progn (forward-line 1) (point)))
- (when (bobp)
- (let ((active (cadr (assoc group nnml-group-alist)))
- num)
- (when active
- (if (eobp)
- (setf (car active) (1+ (cdr active)))
- (when (and (setq num (ignore-errors (read (current-buffer))))
- (numberp num))
- (setf (car active) num)))))))
- t))
-
- (defun nnml-update-file-alist (&optional force)
- (when (or (not nnml-article-file-alist)
- force)
- (setq nnml-article-file-alist
- (nnheader-article-to-file-alist nnml-current-directory))))
-
- (provide 'nnml)
-
- ;;; nnml.el ends here
-