-;;; nnml.el --- mail spool access for Gnus
-;; Copyright (C) 1995 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, 675 Mass Ave, Cambridge, MA 02139, 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)
-
-(defvar nnml-directory "~/Mail/"
- "Mail spool directory.")
-
-(defvar nnml-active-file (concat nnml-directory "active")
- "Mail active file.")
-
-(defvar nnml-newsgroups-file (concat nnml-directory "newsgroups")
- "Mail newsgroups description file.")
-
-(defvar nnml-get-new-mail t
- "If non-nil, nnml will check the incoming mail file and split the mail.")
-
-(defvar 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.")
-
-(defvar nnml-prepare-save-mail-hook nil
- "Hook run narrowed to an article before saving.")
-
-\f
-
-(defconst nnml-version "nnml 1.0"
- "nnml version.")
-
-(defvar nnml-nov-file-name ".overview")
-
-(defvar nnml-current-directory nil)
-(defvar nnml-status-string "")
-(defvar nnml-nov-buffer-alist nil)
-(defvar nnml-group-alist nil)
-(defvar nnml-active-timestamp nil)
-
-\f
-
-;; Server variables.
-
-(defvar nnml-current-server nil)
-(defvar nnml-server-alist nil)
-(defvar nnml-server-variables
- (list
- (list 'nnml-directory nnml-directory)
- (list 'nnml-active-file nnml-active-file)
- (list 'nnml-newsgroups-file nnml-newsgroups-file)
- (list 'nnml-get-new-mail nnml-get-new-mail)
- (list 'nnml-nov-is-evil nnml-nov-is-evil)
- (list 'nnml-nov-file-name nnml-nov-file-name)
- '(nnml-current-directory nil)
- '(nnml-status-string "")
- '(nnml-nov-buffer-alist nil)
- '(nnml-group-alist nil)
- '(nnml-active-timestamp nil)))
-
-\f
-
-;;; Interface functions.
-
-(defun nnml-retrieve-headers (sequence &optional newsgroup server)
- (save-excursion
- (set-buffer nntp-server-buffer)
- (erase-buffer)
- (let ((file nil)
- (number (length sequence))
- (count 0)
- beg article)
- (if (stringp (car sequence))
- 'headers
- (nnml-possibly-change-directory newsgroup)
- (if (nnml-retrieve-headers-with-nov sequence)
- 'nov
- (while sequence
- (setq article (car sequence))
- (setq file
- (concat nnml-current-directory (int-to-string article)))
- (if (and (file-exists-p file)
- (not (file-directory-p file)))
- (progn
- (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))
- gnus-verbose-backends
- (message "nnml: Receiving headers... %d%%"
- (/ (* count 100) number))))
-
- (and (numberp nnmail-large-newsgroup)
- (> number nnmail-large-newsgroup)
- gnus-verbose-backends
- (message "nnml: Receiving headers...done"))
-
- ;; Fold continuation lines.
- (goto-char (point-min))
- (while (re-search-forward "\\(\r?\n[ \t]+\\)+" nil t)
- (replace-match " " t t))
- 'headers)))))
-
-(defun nnml-open-server (server &optional defs)
- (nnheader-init-server-buffer)
- (if (equal server nnml-current-server)
- t
- (if nnml-current-server
- (setq nnml-server-alist
- (cons (list nnml-current-server
- (nnheader-save-variables nnml-server-variables))
- nnml-server-alist)))
- (let ((state (assoc server nnml-server-alist)))
- (if state
- (progn
- (nnheader-restore-variables (nth 1 state))
- (setq nnml-server-alist (delq state nnml-server-alist)))
- (nnheader-set-init-variables nnml-server-variables defs)))
- (setq nnml-current-server server)))
-
-(defun nnml-close-server (&optional server)
- t)
-
-(defun nnml-server-opened (&optional server)
- (and (equal server nnml-current-server)
- nntp-server-buffer
- (buffer-name nntp-server-buffer)))
-
-(defun nnml-status-message (&optional server)
- nnml-status-string)
-
-(defun nnml-request-article (id &optional newsgroup server buffer)
- (nnml-possibly-change-directory newsgroup)
- (let ((file (if (stringp id)
- nil
- (concat nnml-current-directory (int-to-string id))))
- (nntp-server-buffer (or buffer nntp-server-buffer)))
- (if (and (stringp file)
- (file-exists-p file)
- (not (file-directory-p file)))
- (save-excursion
- (nnmail-find-file file)))))
-
-(defun nnml-request-group (group &optional server dont-check)
- (if (not (nnml-possibly-change-directory group))
- (progn
- (setq nnml-status-string "Invalid group (no such directory)")
- nil)
- (if dont-check
- t
- (nnml-get-new-mail group)
- (nnmail-activate 'nnml)
- (let ((active (nth 1 (assoc group nnml-group-alist))))
- (save-excursion
- (set-buffer nntp-server-buffer)
- (erase-buffer)
- (if (not active)
- ()
- (insert (format "211 %d %d %d %s\n"
- (max (1+ (- (cdr active) (car active))) 0)
- (car active) (cdr active) group))
- t))))))
-
-(defun nnml-close-group (group &optional server)
- t)
-
-(defun nnml-request-close ()
- (setq nnml-current-server nil)
- (setq nnml-server-alist nil)
- t)
-
-(defun nnml-request-create-group (group &optional server)
- (nnmail-activate 'nnml)
- (or (assoc group nnml-group-alist)
- (let (active)
- (setq nnml-group-alist (cons (list group (setq active (cons 1 0)))
- nnml-group-alist))
- (nnml-possibly-create-directory group)
- (nnml-possibly-change-directory group)
- (let ((articles (mapcar
- (lambda (file)
- (string-to-int file))
- (directory-files
- nnml-current-directory nil "^[0-9]+$"))))
- (and articles
- (progn
- (setcar active (apply 'min articles))
- (setcdr active (apply 'max articles)))))
- (nnmail-save-active nnml-group-alist nnml-active-file)))
- t)
-
-(defun nnml-request-list (&optional server)
- (if server (nnml-get-new-mail))
- (save-excursion
- (nnmail-find-file nnml-active-file)
- (setq nnml-group-alist (nnmail-get-active))))
-
-(defun nnml-request-newgroups (date &optional server)
- (nnml-request-list server))
-
-(defun nnml-request-list-newsgroups (&optional server)
- (save-excursion
- (nnmail-find-file nnml-newsgroups-file)))
-
-(defun nnml-request-post (&optional server)
- (mail-send-and-exit nil))
-
-(defalias 'nnml-request-post-buffer 'nnmail-request-post-buffer)
-
-(defun nnml-request-expire-articles (articles newsgroup &optional server force)
- (nnml-possibly-change-directory newsgroup)
- (let* ((days (or (and nnmail-expiry-wait-function
- (funcall nnmail-expiry-wait-function newsgroup))
- nnmail-expiry-wait))
- (active-articles
- (mapcar
- (function
- (lambda (name)
- (string-to-int name)))
- (directory-files nnml-current-directory nil "^[0-9]+$" t)))
- (max-article (and active-articles (apply 'max active-articles)))
- (is-old t)
- article rest mod-time)
- (nnmail-activate 'nnml)
-
- (while (and articles is-old)
- (setq article (concat nnml-current-directory
- (int-to-string (car articles))))
- (if (setq mod-time (nth 5 (file-attributes article)))
- (if (and (or (not nnmail-keep-last-article)
- (not max-article)
- (not (= (car articles) max-article)))
- (or force
- (and (not (equal mod-time '(0 0)))
- (setq is-old
- (> (nnmail-days-between
- (current-time-string)
- (current-time-string mod-time))
- days)))))
- (progn
- (and gnus-verbose-backends
- (message "Deleting article %s..." article))
- (condition-case ()
- (delete-file article)
- (file-error
- (setq rest (cons (car articles) rest))))
- (setq active-articles (delq (car articles) active-articles))
- (nnml-nov-delete-article newsgroup (car articles)))
- (setq rest (cons (car articles) rest))))
- (setq articles (cdr articles)))
- (let ((active (nth 1 (assoc newsgroup nnml-group-alist))))
- (and active
- (setcar active (or (and active-articles
- (apply 'min active-articles))
- 0)))
- (nnmail-save-active nnml-group-alist nnml-active-file))
- (nnml-save-nov)
- (message "")
- (nconc rest articles)))
-
-(defun nnml-request-move-article
- (article group server accept-form &optional last)
- (let ((buf (get-buffer-create " *nnml move*"))
- result)
- (and
- (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
- (condition-case ()
- (delete-file (concat nnml-current-directory
- (int-to-string article)))
- (file-error nil))
- (nnml-nov-delete-article group article)
- (and last (nnml-save-nov))))
- result))
-
-(defun nnml-request-accept-article (group &optional last)
- (let (result)
- (if (stringp group)
- (and
- (nnmail-activate 'nnml)
- ;; We trick the choosing function into believing that only one
- ;; group is available.
- (let ((nnmail-split-methods (list (list group ""))))
- (setq result (car (nnml-save-mail))))
- (progn
- (nnmail-save-active nnml-group-alist nnml-active-file)
- (and last (nnml-save-nov))))
- (and
- (nnmail-activate 'nnml)
- (setq result (car (nnml-save-mail)))
- (progn
- (nnmail-save-active nnml-group-alist nnml-active-file)
- (and last (nnml-save-nov)))))
- result))
-
-(defun nnml-request-replace-article (article group buffer)
- (nnml-possibly-change-directory group)
- (save-excursion
- (set-buffer buffer)
- (nnml-possibly-create-directory group)
- (if (not (condition-case ()
- (progn
- (write-region (point-min) (point-max)
- (concat nnml-current-directory
- (int-to-string article))
- nil (if gnus-verbose-backends nil 'nomesg))
- t)
- (error nil)))
- ()
- (let ((chars (nnmail-insert-lines))
- (art (concat (int-to-string article) "\t"))
- nov-line)
- (setq nov-line (nnml-make-nov-line chars))
- ;; 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)
- (insert (int-to-string article) nov-line)
- (nnml-save-nov)
- t)))))
-
-
-\f
-;;; Internal functions
-
-(defun nnml-retrieve-headers-with-nov (articles)
- (if (or gnus-nov-is-evil nnml-nov-is-evil)
- nil
- (let ((first (car articles))
- (last (progn (while (cdr articles) (setq articles (cdr articles)))
- (car articles)))
- (nov (concat nnml-current-directory nnml-nov-file-name)))
- (if (file-exists-p nov)
- (save-excursion
- (set-buffer nntp-server-buffer)
- (erase-buffer)
- (insert-file-contents nov)
- (goto-char (point-min))
- (while (and (not (eobp)) (< first (read (current-buffer))))
- (forward-line 1))
- (beginning-of-line)
- (if (not (eobp)) (delete-region 1 (point)))
- (while (and (not (eobp)) (>= last (read (current-buffer))))
- (forward-line 1))
- (beginning-of-line)
- (if (not (eobp)) (delete-region (point) (point-max)))
- t)))))
-
-(defun nnml-possibly-change-directory (newsgroup &optional force)
- (if newsgroup
- (let ((pathname (nnmail-article-pathname newsgroup nnml-directory)))
- (and (or force (file-directory-p pathname))
- (setq nnml-current-directory pathname)))
- t))
-
-(defun nnml-possibly-create-directory (group)
- (let (dir dirs)
- (setq dir (nnmail-article-pathname group nnml-directory))
- (while (not (file-directory-p dir))
- (setq dirs (cons dir dirs))
- (setq dir (file-name-directory (directory-file-name dir))))
- (while dirs
- (make-directory (directory-file-name (car dirs)))
- (and gnus-verbose-backends
- (message "Creating mail directory %s" (car dirs)))
- (setq dirs (cdr dirs)))))
-
-(defun nnml-save-mail ()
- "Called narrowed to an article."
- (let ((group-art (nreverse (nnmail-article-group 'nnml-active-number)))
- chars nov-line)
- (setq chars (nnmail-insert-lines))
- (nnmail-insert-xref group-art)
- (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 newsgroups it belongs in.
- (let ((ga group-art)
- first)
- (while ga
- (nnml-possibly-create-directory (car (car ga)))
- (let ((file (concat (nnmail-article-pathname
- (car (car ga)) nnml-directory)
- (int-to-string (cdr (car ga))))))
- (if first
- ;; It was already saved, so we just make a hard link.
- (add-name-to-file first file t)
- ;; Save the article.
- (write-region (point-min) (point-max) file nil
- (if gnus-verbose-backends 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 nov-line (nnml-make-nov-line chars))
- ;; Output the nov line to all nov databases that should have it.
- (let ((ga group-art))
- (while ga
- (nnml-add-nov (car (car ga)) (cdr (car ga)) nov-line)
- (setq ga (cdr ga))))
- group-art))
-
-(defun nnml-active-number (group)
- "Compute the next article number in GROUP."
- (let ((active (car (cdr (assoc group nnml-group-alist)))))
- ;; The group wasn't known to nnml, so we just create an active
- ;; entry for it.
- (or active
- (progn
- (setq active (cons 1 0))
- (setq nnml-group-alist (cons (list group active) nnml-group-alist))))
- (setcdr active (1+ (cdr active)))
- (while (file-exists-p
- (concat (nnmail-article-pathname group nnml-directory)
- (int-to-string (cdr active))))
- (setcdr active (1+ (cdr active))))
- (cdr active)))
-
-(defun nnml-get-new-mail (&optional group)
- "Read new incoming mail."
- (let* ((spools (nnmail-get-spool-files group))
- (group-in group)
- incoming incomings)
- (if (or (not nnml-get-new-mail) (not nnmail-spool-file))
- ()
- ;; We first activate all the groups.
- (nnmail-activate 'nnml)
- ;; The we go through all the existing spool files and split the
- ;; mail from each.
- (while spools
- (and
- (file-exists-p (car spools))
- (> (nth 7 (file-attributes (car spools))) 0)
- (progn
- (and gnus-verbose-backends
- (message "nnml: Reading incoming mail..."))
- (if (not (setq incoming
- (nnmail-move-inbox
- (car spools) (concat nnml-directory "Incoming"))))
- ()
- (setq group (nnmail-get-split-group (car spools) group-in))
- (nnmail-split-incoming incoming 'nnml-save-mail nil group)
- (setq incomings (cons incoming incomings)))))
- (setq spools (cdr spools)))
- ;; If we did indeed read any incoming spools, we save all info.
- (if incoming
- (progn
- (nnmail-save-active nnml-group-alist nnml-active-file)
- (nnml-save-nov)
- (run-hooks 'nnmail-read-incoming-hook)
- (and gnus-verbose-backends
- (message "nnml: Reading incoming mail...done"))))
- (while incomings
- (setq incoming (car incomings))
- (and nnmail-delete-incoming
- (file-exists-p incoming)
- (file-writable-p incoming)
- (delete-file incoming))
- (setq incomings (cdr incomings))))))
-
-
-(defun nnml-add-nov (group article line)
- "Add a nov line for the GROUP base."
- (save-excursion
- (set-buffer (nnml-open-nov group))
- (goto-char (point-max))
- (insert (int-to-string article) line)))
-
-(defsubst nnml-header-value ()
- (buffer-substring (match-end 0) (save-excursion (end-of-line) (point))))
-
-(defun nnml-make-nov-line (chars)
- "Create a nov from the current headers."
- (let ((case-fold-search t)
- subject from date id references lines xref in-reply-to char)
- (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))
- (subst-char-in-region (point-min) (point-max) ?\t ? )
- ;; [number subject from date id references chars lines xref]
- (save-excursion
- (goto-char (point-min))
- (while (re-search-forward "^\\(from\\|subject\\|message-id\\|date\\|lines\\|xref\\|references\\|in-reply-to\\): "
- nil t)
- (beginning-of-line)
- (setq char (downcase (following-char)))
- (cond
- ((eq char ?s)
- (setq subject (nnml-header-value)))
- ((eq char ?f)
- (setq from (nnml-header-value)))
- ((eq char ?x)
- (setq xref (nnml-header-value)))
- ((eq char ?l)
- (setq lines (nnml-header-value)))
- ((eq char ?d)
- (setq date (nnml-header-value)))
- ((eq char ?m)
- (setq id (setq id (nnml-header-value))))
- ((eq char ?r)
- (setq references (nnml-header-value)))
- ((eq char ?i)
- (setq in-reply-to (nnml-header-value))))
- (forward-line 1))
-
- (and (not references)
- in-reply-to
- (string-match "<[^>]+>" in-reply-to)
- (setq references
- (substring in-reply-to (match-beginning 0)
- (match-end 0)))))
- ;; [number subject from date id references chars lines xref]
- (format "\t%s\t%s\t%s\t%s\t%s\t%d\t%s\t%s\t\n"
- (or subject "(none)")
- (or from "(nobody)") (or date "")
- (or id (concat "nnml-dummy-id-"
- (mapconcat
- (lambda (time) (int-to-string time))
- (current-time) "-")))
- (or references "")
- (or chars 0) (or lines "0") (or xref ""))))))
-
-(defun nnml-open-nov (group)
- (or (cdr (assoc group nnml-nov-buffer-alist))
- (let ((buffer (find-file-noselect
- (concat (nnmail-article-pathname
- group nnml-directory) nnml-nov-file-name))))
- (save-excursion
- (set-buffer buffer)
- (buffer-disable-undo (current-buffer)))
- (setq nnml-nov-buffer-alist
- (cons (cons group buffer) nnml-nov-buffer-alist))
- buffer)))
-
-(defun nnml-save-nov ()
- (save-excursion
- (while nnml-nov-buffer-alist
- (if (buffer-name (cdr (car nnml-nov-buffer-alist)))
- (progn
- (set-buffer (cdr (car nnml-nov-buffer-alist)))
- (and (buffer-modified-p)
- (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 (dir)
- "Generate nov databases in all nnml mail newsgroups."
- (interactive
- (progn
- (setq nnml-group-alist nil)
- (list nnml-directory)))
- (nnml-open-server (or nnml-current-server ""))
- (let ((dirs (directory-files dir t nil t)))
- (while dirs
- (if (and (not (string-match "/\\.\\.$" (car dirs)))
- (not (string-match "/\\.$" (car dirs)))
- (file-directory-p (car dirs)))
- (nnml-generate-nov-databases (car dirs)))
- (setq dirs (cdr dirs))))
- (let ((files (sort
- (mapcar
- (function
- (lambda (name)
- (string-to-int name)))
- (directory-files dir nil "^[0-9]+$" t))
- (function <)))
- (nov (concat dir "/" nnml-nov-file-name))
- (nov-buffer (get-buffer-create "*nov*"))
- nov-line chars)
- (if files
- (setq nnml-group-alist
- (cons (list (nnmail-replace-chars-in-string
- (substring (expand-file-name dir)
- (length (expand-file-name
- nnml-directory)))
- ?/ ?.)
- (cons (car files)
- (let ((f files))
- (while (cdr f) (setq f (cdr f)))
- (car f))))
- nnml-group-alist)))
- (if files
- (save-excursion
- (set-buffer nntp-server-buffer)
- (if (file-exists-p nov)
- (delete-file nov))
- (save-excursion
- (set-buffer nov-buffer)
- (buffer-disable-undo (current-buffer))
- (erase-buffer))
- (while files
- (erase-buffer)
- (insert-file-contents (concat dir "/" (int-to-string (car files))))
- (goto-char (point-min))
- (narrow-to-region 1 (save-excursion (search-forward "\n\n" nil t)
- (setq chars (- (point-max)
- (point)))
- (point)))
- (if (not (= 0 chars)) ; none of them empty files...
- (progn
- (setq nov-line (nnml-make-nov-line chars))
- (save-excursion
- (set-buffer nov-buffer)
- (goto-char (point-max))
- (insert (int-to-string (car files)) nov-line))))
- (widen)
- (setq files (cdr files)))
- (save-excursion
- (set-buffer nov-buffer)
- (write-region 1 (point-max) (expand-file-name nov) nil
- 'nomesg)
- (kill-buffer (current-buffer)))))
- (nnmail-save-active nnml-group-alist nnml-active-file)))
-
-(defun nnml-nov-delete-article (group article)
- (save-excursion
- (set-buffer (nnml-open-nov group))
- (goto-char (point-min))
- (if (re-search-forward (concat "^" (int-to-string article) "\t") nil t)
- (delete-region (match-beginning 0) (progn (forward-line 1) (point))))
- t))
-
-(provide 'nnml)
-
-;;; nnml.el ends here
+;;; nnml.el --- mail spool access for Gnus
+;; Copyright (C) 1995,96 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)
+(require 'cl)
+
+(nnoo-declare nnml)
+
+(defvoo nnml-directory message-directory
+ "Mail spool directory.")
+
+(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.")
+
+
+\f
+
+(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)
+
+\f
+
+;;; Interface functions.
+
+(nnoo-define-basics nnml)
+
+(deffoo nnml-retrieve-headers (sequence &optional newsgroup server fetch-old)
+ (save-excursion
+ (set-buffer nntp-server-buffer)
+ (erase-buffer)
+ (let ((file nil)
+ (number (length sequence))
+ (count 0)
+ beg article)
+ (if (stringp (car sequence))
+ 'headers
+ (nnml-possibly-change-directory newsgroup server)
+ (unless nnml-article-file-alist
+ (setq nnml-article-file-alist
+ (nnheader-article-to-file-alist nnml-current-directory)))
+ (if (nnml-retrieve-headers-with-nov sequence fetch-old)
+ 'nov
+ (while sequence
+ (setq article (car sequence))
+ (setq file
+ (concat nnml-current-directory
+ (or (cdr (assq article nnml-article-file-alist))
+ "")))
+ (if (and (file-exists-p file)
+ (not (file-directory-p file)))
+ (progn
+ (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 t)))
+ (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)))
+
+(deffoo nnml-request-article (id &optional newsgroup server buffer)
+ (nnml-possibly-change-directory newsgroup server)
+ (let* ((nntp-server-buffer (or buffer nntp-server-buffer))
+ file path gpath group-num)
+ (if (stringp id)
+ (when (and (setq group-num (nnml-find-group-number id))
+ (setq file (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)))))
+ (unless nnml-article-file-alist
+ (setq nnml-article-file-alist
+ (nnheader-article-to-file-alist nnml-current-directory)))
+ (when (setq file (cdr (assq id nnml-article-file-alist)))
+ (setq path (concat nnml-current-directory file))))
+ (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 newsgroup (string-to-int (file-name-nondirectory path)))))))
+
+(deffoo nnml-request-group (group &optional server dont-check)
+ (cond
+ ((not (nnml-possibly-change-directory group server))
+ (nnheader-report 'nnml "Invalid group (no such 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
+ (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)
+ (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)
+ (nnmail-activate 'nnml)
+ (or (assoc group nnml-group-alist)
+ (let (active)
+ (setq nnml-group-alist (cons (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 )))
+ (and articles
+ (progn
+ (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
+ (nnmail-find-file nnml-active-file)
+ (setq nnml-group-alist (nnmail-get-active))))
+
+(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 newsgroup &optional server force)
+ (nnml-possibly-change-directory newsgroup server)
+ (let* ((active-articles
+ (nnheader-directory-articles nnml-current-directory))
+ (is-old t)
+ article rest mod-time number)
+ (nnmail-activate 'nnml)
+
+ (unless nnml-article-file-alist
+ (setq nnml-article-file-alist
+ (nnheader-article-to-file-alist nnml-current-directory)))
+
+ (while (and articles is-old)
+ (setq article (concat nnml-current-directory
+ (int-to-string
+ (setq number (pop articles)))))
+ (when (setq mod-time (nth 5 (file-attributes article)))
+ (if (and (nnml-deletable-article-p newsgroup number)
+ (setq is-old
+ (nnmail-expired-article-p newsgroup mod-time force
+ nnml-inhibit-expiry)))
+ (progn
+ (nnheader-message 5 "Deleting article %s in %s..."
+ article newsgroup)
+ (condition-case ()
+ (funcall nnmail-delete-file-function article)
+ (file-error
+ (push number rest)))
+ (setq active-articles (delq number active-articles))
+ (nnml-nov-delete-article newsgroup number))
+ (push number rest))))
+ (let ((active (nth 1 (assoc newsgroup 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)
+ (message "")
+ (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)
+ (unless nnml-article-file-alist
+ (setq nnml-article-file-alist
+ (nnheader-article-to-file-alist nnml-current-directory)))
+ (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
+ (concat nnml-current-directory
+ (int-to-string article)))
+ (file-error nil))
+ (nnml-nov-delete-article group article)
+ (and last (nnml-save-nov))))
+ result))
+
+(deffoo nnml-request-accept-article (group &optional server last)
+ (nnml-possibly-change-directory group server)
+ (nnmail-check-syntax)
+ (let (result)
+ (if (stringp group)
+ (and
+ (nnmail-activate 'nnml)
+ ;; We trick the choosing function into believing that only one
+ ;; group is available.
+ (let ((nnmail-split-methods (list (list group ""))))
+ (setq result (car (nnml-save-mail))))
+ (progn
+ (nnmail-save-active nnml-group-alist nnml-active-file)
+ (and last (nnml-save-nov))))
+ (and
+ (nnmail-activate 'nnml)
+ (setq result (car (nnml-save-mail)))
+ (progn
+ (nnmail-save-active nnml-group-alist nnml-active-file)
+ (and last (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
+ (write-region
+ (point-min) (point-max)
+ (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)
+ ;; Rename directory.
+ (and (file-writable-p nnml-current-directory)
+ (condition-case ()
+ (let ((parent
+ (file-name-directory
+ (directory-file-name
+ (nnmail-group-pathname new-name nnml-directory)))))
+ (unless (file-exists-p parent)
+ (make-directory parent t))
+ (rename-file
+ (directory-file-name nnml-current-directory)
+ (directory-file-name
+ (nnmail-group-pathname new-name nnml-directory)))
+ t)
+ (error nil))
+ ;; That went ok, so we change the internal structures.
+ (let ((entry (assoc group nnml-group-alist)))
+ (and 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)))
+
+\f
+;;; Internal functions.
+
+(defun nnml-deletable-article-p (group article)
+ "Say whether ARTICLE in GROUP can be deleted."
+ (let (file path)
+ (when (setq file (cdr (assq article nnml-article-file-alist)))
+ (setq path (concat nnml-current-directory file))
+ (and (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)
+ (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 (search-backward
+ "\t" (save-excursion (beginning-of-line) (point)) t 4)
+ (progn
+ (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 ((first (car articles))
+ (last (progn (while (cdr articles) (setq articles (cdr articles)))
+ (car articles)))
+ (nov (concat nnml-current-directory nnml-nov-file-name)))
+ (when (file-exists-p nov)
+ (save-excursion
+ (set-buffer nntp-server-buffer)
+ (erase-buffer)
+ (insert-file-contents nov)
+ (if (and fetch-old
+ (not (numberp fetch-old)))
+ t ; Don't remove anything.
+ (if fetch-old
+ (setq first (max 1 (- first fetch-old))))
+ (goto-char (point-min))
+ (while (and (not (eobp)) (> first (read (current-buffer))))
+ (forward-line 1))
+ (beginning-of-line)
+ (if (not (eobp)) (delete-region 1 (point)))
+ (while (and (not (eobp)) (>= last (read (current-buffer))))
+ (forward-line 1))
+ (beginning-of-line)
+ (if (not (eobp)) (delete-region (point) (point-max)))
+ t))))))
+
+(defun nnml-possibly-change-directory (group &optional server)
+ (when (and server
+ (not (nnml-server-opened server)))
+ (nnml-open-server server))
+ (when group
+ (let ((pathname (nnmail-group-pathname group nnml-directory)))
+ (when (not (equal pathname nnml-current-directory))
+ (setq nnml-current-directory pathname
+ nnml-current-group group
+ nnml-article-file-alist nil))))
+ t)
+
+(defun nnml-possibly-create-directory (group)
+ (let (dir dirs)
+ (setq dir (nnmail-group-pathname group nnml-directory))
+ (while (not (file-directory-p dir))
+ (setq dirs (cons 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 ()
+ "Called narrowed to an article."
+ (let ((group-art (nreverse (nnmail-article-group 'nnml-active-number)))
+ 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 newsgroups 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.
+ (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)))
+ (setq nnml-group-alist (cons (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 (find-file-noselect
+ (concat (nnmail-group-pathname group nnml-directory)
+ nnml-nov-file-name))))
+ (save-excursion
+ (set-buffer buffer)
+ (buffer-disable-undo (current-buffer)))
+ (setq nnml-nov-buffer-alist
+ (cons (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))
+ (and (buffer-modified-p)
+ (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)
+ ;; Save the active file.
+ (nnmail-save-active nnml-group-alist nnml-active-file))
+
+(defun nnml-generate-nov-databases-1 (dir)
+ (setq dir (file-name-as-directory dir))
+ ;; We descend recursively
+ (let ((dirs (directory-files dir t nil t))
+ dir)
+ (while dirs
+ (setq dir (pop dirs))
+ (when (and (not (member (file-name-nondirectory dir) '("." "..")))
+ (file-directory-p dir))
+ (nnml-generate-nov-databases-1 dir))))
+ ;; Do this directory.
+ (let ((files (sort
+ (mapcar
+ (lambda (name) (string-to-int name))
+ (directory-files dir nil "^[0-9]+$" t))
+ '<)))
+ (when files
+ (funcall nnml-generate-active-function dir)
+ ;; Generate the nov file.
+ (nnml-generate-nov-file dir files))))
+
+(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 (car files)
+ (let ((f files))
+ (while (cdr f) (setq f (cdr f)))
+ (car 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*"))
+ nov-line 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 (int-to-string (car files)))))
+ (erase-buffer)
+ (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)))))
+ (when (and (not (= 0 chars)) ; none of them empty files...
+ (not (= (point-min) (point-max))))
+ (goto-char (point-min))
+ (setq headers (nnml-parse-head chars (car 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)
+ (write-region 1 (point-max) (expand-file-name nov) nil
+ 'nomesg)
+ (kill-buffer (current-buffer))))))
+
+(defun nnml-nov-delete-article (group article)
+ (save-excursion
+ (set-buffer (nnml-open-nov group))
+ (goto-char (point-min))
+ (if (re-search-forward (concat "^" (int-to-string article) "\t") nil t)
+ (delete-region (match-beginning 0) (progn (forward-line 1) (point))))
+ t))
+
+(provide 'nnml)
+
+;;; nnml.el ends here
HCoop / bpt / emacs.git / blobdiff