+++ /dev/null
-;;; nnmh.el --- mhspool access for Gnus
-
-;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
-;; 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
-
-;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
-;; 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 3, 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., 51 Franklin Street, Fifth Floor,
-;; Boston, MA 02110-1301, 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 'gnus-start)
-(require 'nnoo)
-(eval-when-compile (require 'cl))
-
-(nnoo-declare nnmh)
-
-(defvoo nnmh-directory message-directory
- "Mail spool directory.")
-
-(defvoo nnmh-get-new-mail t
- "If non-nil, nnmh will check the incoming mail file and split the mail.")
-
-(defvoo nnmh-prepare-save-mail-hook nil
- "Hook run narrowed to an article before saving.")
-
-(defvoo nnmh-be-safe nil
- "If non-nil, nnmh will check all articles to make sure whether they are new or not.
-Go through the .nnmh-articles file and compare with the actual
-articles in this folder. The articles that are \"new\" will be marked
-as unread by Gnus.")
-
-\f
-
-(defconst nnmh-version "nnmh 1.0"
- "nnmh version.")
-
-(defvoo nnmh-current-directory nil
- "Current news group directory.")
-
-(defvoo nnmh-status-string "")
-(defvoo nnmh-group-alist nil)
-;; Don't even think about setting this variable. It does not exist.
-;; Forget about it. Uh-huh. Nope. Nobody here. It's only bound
-;; dynamically by certain functions in nndraft.
-(defvar nnmh-allow-delete-final nil)
-
-\f
-
-;;; Interface functions.
-
-(nnoo-define-basics nnmh)
-
-(deffoo nnmh-retrieve-headers (articles &optional newsgroup server fetch-old)
- (save-excursion
- (set-buffer nntp-server-buffer)
- (erase-buffer)
- (let* ((file nil)
- (number (length articles))
- (large (and (numberp nnmail-large-newsgroup)
- (> number nnmail-large-newsgroup)))
- (count 0)
- (file-name-coding-system nnmail-pathname-coding-system)
- beg article)
- (nnmh-possibly-change-directory newsgroup server)
- ;; We don't support fetching by Message-ID.
- (if (stringp (car articles))
- 'headers
- (while articles
- (when (and (file-exists-p
- (setq file (concat (file-name-as-directory
- nnmh-current-directory)
- (int-to-string
- (setq article (pop articles))))))
- (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 count (1+ count))
-
- (and large
- (zerop (% count 20))
- (nnheader-message 5 "nnmh: Receiving headers... %d%%"
- (/ (* count 100) number))))
-
- (when large
- (nnheader-message 5 "nnmh: Receiving headers...done"))
-
- (nnheader-fold-continuation-lines)
- 'headers))))
-
-(deffoo nnmh-open-server (server &optional defs)
- (nnoo-change-server 'nnmh server defs)
- (when (not (file-exists-p nnmh-directory))
- (condition-case ()
- (make-directory nnmh-directory t)
- (error t)))
- (cond
- ((not (file-exists-p nnmh-directory))
- (nnmh-close-server)
- (nnheader-report 'nnmh "Couldn't create directory: %s" nnmh-directory))
- ((not (file-directory-p (file-truename nnmh-directory)))
- (nnmh-close-server)
- (nnheader-report 'nnmh "Not a directory: %s" nnmh-directory))
- (t
- (nnheader-report 'nnmh "Opened server %s using directory %s"
- server nnmh-directory)
- t)))
-
-(deffoo nnmh-request-article (id &optional newsgroup server buffer)
- (nnmh-possibly-change-directory newsgroup server)
- (let ((file (if (stringp id)
- nil
- (concat nnmh-current-directory (int-to-string id))))
- (file-name-coding-system nnmail-pathname-coding-system)
- (nntp-server-buffer (or buffer nntp-server-buffer)))
- (and (stringp file)
- (file-exists-p file)
- (not (file-directory-p file))
- (save-excursion (nnmail-find-file file))
- (string-to-number (file-name-nondirectory file)))))
-
-(deffoo nnmh-request-group (group &optional server dont-check)
- (nnheader-init-server-buffer)
- (nnmh-possibly-change-directory group server)
- (let ((pathname (nnmail-group-pathname group nnmh-directory))
- (file-name-coding-system nnmail-pathname-coding-system)
- dir)
- (cond
- ((not (file-directory-p pathname))
- (nnheader-report
- 'nnmh "Can't select group (no such directory): %s" group))
- (t
- (setq nnmh-current-directory pathname)
- (and nnmh-get-new-mail
- nnmh-be-safe
- (nnmh-update-gnus-unreads group))
- (cond
- (dont-check
- (nnheader-report 'nnmh "Selected group %s" group)
- t)
- (t
- ;; Re-scan the directory if it's on a foreign system.
- (nnheader-re-read-dir pathname)
- (setq dir
- (sort
- (mapcar (lambda (name) (string-to-number name))
- (directory-files pathname nil "^[0-9]+$" t))
- '<))
- (cond
- (dir
- (setq nnmh-group-alist
- (delq (assoc group nnmh-group-alist) nnmh-group-alist))
- (push (list group (cons (car dir) (car (last dir))))
- nnmh-group-alist)
- (nnheader-report 'nnmh "Selected group %s" group)
- (nnheader-insert
- "211 %d %d %d %s\n" (length dir) (car dir)
- (car (last dir)) group))
- (t
- (nnheader-report 'nnmh "Empty group %s" group)
- (nnheader-insert (format "211 0 1 0 %s\n" group))))))))))
-
-(deffoo nnmh-request-scan (&optional group server)
- (nnmail-get-new-mail 'nnmh nil nnmh-directory group))
-
-(deffoo nnmh-request-list (&optional server dir)
- (nnheader-insert "")
- (nnmh-possibly-change-directory nil server)
- (let ((file-name-coding-system nnmail-pathname-coding-system)
- (nnmh-toplev
- (file-truename (or dir (file-name-as-directory nnmh-directory)))))
- (nnmh-request-list-1 nnmh-toplev))
- (setq nnmh-group-alist (nnmail-get-active))
- t)
-
-(defvar nnmh-toplev)
-(defun nnmh-request-list-1 (dir)
- (setq dir (expand-file-name dir))
- ;; Recurse down all directories.
- (let ((dirs (and (file-readable-p dir)
- (> (nth 1 (file-attributes (file-chase-links dir))) 2)
- (nnheader-directory-files dir t nil t)))
- rdir)
- ;; Recurse down directories.
- (while (setq rdir (pop dirs))
- (when (and (file-directory-p rdir)
- (file-readable-p rdir)
- (not (equal (file-truename rdir)
- (file-truename dir))))
- (nnmh-request-list-1 rdir))))
- ;; For each directory, generate an active file line.
- (unless (string= (expand-file-name nnmh-toplev) dir)
- (let ((files (mapcar
- (lambda (name) (string-to-number name))
- (directory-files dir nil "^[0-9]+$" t))))
- (when files
- (save-excursion
- (set-buffer nntp-server-buffer)
- (goto-char (point-max))
- (insert
- (format
- "%s %.0f %.0f y\n"
- (progn
- (string-match
- (regexp-quote
- (file-truename (file-name-as-directory
- (expand-file-name nnmh-toplev))))
- dir)
- (mm-string-as-multibyte
- (mm-encode-coding-string
- (nnheader-replace-chars-in-string
- (substring dir (match-end 0))
- ?/ ?.)
- nnmail-pathname-coding-system)))
- (apply 'max files)
- (apply 'min files)))))))
- t)
-
-(deffoo nnmh-request-newgroups (date &optional server)
- (nnmh-request-list server))
-
-(deffoo nnmh-request-expire-articles (articles newsgroup
- &optional server force)
- (nnmh-possibly-change-directory newsgroup server)
- (let ((is-old t)
- (nnmail-expiry-target
- (or (gnus-group-find-parameter newsgroup 'expiry-target t)
- nnmail-expiry-target))
- article rest mod-time)
- (nnheader-init-server-buffer)
-
- (while (and articles is-old)
- (setq article (concat nnmh-current-directory
- (int-to-string (car articles))))
- (when (setq mod-time (nth 5 (file-attributes article)))
- (if (and (nnmh-deletable-article-p newsgroup (car articles))
- (setq is-old
- (nnmail-expired-article-p newsgroup mod-time force)))
- (progn
- ;; Allow a special target group. -- jcn
- (unless (eq nnmail-expiry-target 'delete)
- (with-temp-buffer
- (nnmh-request-article (car articles)
- newsgroup server (current-buffer))
- (nnmail-expiry-target-group
- nnmail-expiry-target newsgroup)))
- (nnheader-message 5 "Deleting article %s in %s..."
- article newsgroup)
- (condition-case ()
- (funcall nnmail-delete-file-function article)
- (file-error
- (nnheader-message 1 "Couldn't delete article %s in %s"
- article newsgroup)
- (push (car articles) rest))))
- (push (car articles) rest)))
- (setq articles (cdr articles)))
- (nnheader-message 5 "")
- (nconc rest articles)))
-
-(deffoo nnmh-close-group (group &optional server)
- t)
-
-(deffoo nnmh-request-move-article (article group server
- accept-form &optional last)
- (let ((buf (get-buffer-create " *nnmh move*"))
- result)
- (and
- (nnmh-deletable-article-p group article)
- (nnmh-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)
- (progn
- (nnmh-possibly-change-directory group server)
- (condition-case ()
- (funcall nnmail-delete-file-function
- (concat nnmh-current-directory (int-to-string article)))
- (file-error nil))))
- result))
-
-(deffoo nnmh-request-accept-article (group &optional server last noinsert)
- (nnmh-possibly-change-directory group server)
- (nnmail-check-syntax)
- (when nnmail-cache-accepted-message-ids
- (nnmail-cache-insert (nnmail-fetch-field "message-id")
- group
- (nnmail-fetch-field "subject")
- (nnmail-fetch-field "from")))
- (nnheader-init-server-buffer)
- (prog1
- (if (stringp group)
- (if noinsert
- (nnmh-active-number group)
- (car (nnmh-save-mail
- (list (cons group (nnmh-active-number group)))
- noinsert)))
- (let ((res (nnmail-article-group 'nnmh-active-number)))
- (if (and (null res)
- (yes-or-no-p "Moved to `junk' group; delete article? "))
- 'junk
- (car (nnmh-save-mail res noinsert)))))
- (when (and last nnmail-cache-accepted-message-ids)
- (nnmail-cache-close))))
-
-(deffoo nnmh-request-replace-article (article group buffer)
- (nnmh-possibly-change-directory group)
- (save-excursion
- (set-buffer buffer)
- (nnmh-possibly-create-directory group)
- (ignore-errors
- (nnmail-write-region
- (point-min) (point-max)
- (concat nnmh-current-directory (int-to-string article))
- nil (if (nnheader-be-verbose 5) nil 'nomesg))
- t)))
-
-(deffoo nnmh-request-create-group (group &optional server args)
- (nnheader-init-server-buffer)
- (unless (assoc group nnmh-group-alist)
- (let (active)
- (push (list group (setq active (cons 1 0)))
- nnmh-group-alist)
- (nnmh-possibly-create-directory group)
- (nnmh-possibly-change-directory group server)
- (let ((articles (mapcar
- (lambda (file)
- (string-to-number file))
- (directory-files
- nnmh-current-directory nil "^[0-9]+$"))))
- (when articles
- (setcar active (apply 'min articles))
- (setcdr active (apply 'max articles))))))
- t)
-
-(deffoo nnmh-request-delete-group (group &optional force server)
- (nnmh-possibly-change-directory group server)
- ;; Delete all articles in GROUP.
- (if (not force)
- () ; Don't delete the articles.
- (let ((articles (directory-files nnmh-current-directory t "^[0-9]+$")))
- (while articles
- (when (file-writable-p (car articles))
- (nnheader-message 5 "Deleting article %s in %s..."
- (car articles) group)
- (funcall nnmail-delete-file-function (car articles)))
- (setq articles (cdr articles))))
- ;; Try to delete the directory itself.
- (ignore-errors
- (delete-directory nnmh-current-directory)))
- ;; Remove the group from all structures.
- (setq nnmh-group-alist
- (delq (assoc group nnmh-group-alist) nnmh-group-alist)
- nnmh-current-directory nil)
- t)
-
-(deffoo nnmh-request-rename-group (group new-name &optional server)
- (nnmh-possibly-change-directory group server)
- (let ((new-dir (nnmail-group-pathname new-name nnmh-directory))
- (old-dir (nnmail-group-pathname group nnmh-directory)))
- (when (ignore-errors
- (make-directory new-dir t)
- t)
- ;; 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)))
- (when (<= (length (directory-files old-dir)) 2)
- (ignore-errors
- (delete-directory old-dir)))
- ;; That went ok, so we change the internal structures.
- (let ((entry (assoc group nnmh-group-alist)))
- (when entry
- (setcar entry new-name))
- (setq nnmh-current-directory nil)
- t))))
-
-(nnoo-define-skeleton nnmh)
-
-\f
-;;; Internal functions.
-
-(defun nnmh-possibly-change-directory (newsgroup &optional server)
- (when (and server
- (not (nnmh-server-opened server)))
- (nnmh-open-server server))
- (when newsgroup
- (let ((pathname (nnmail-group-pathname newsgroup nnmh-directory))
- (file-name-coding-system nnmail-pathname-coding-system))
- (if (file-directory-p pathname)
- (setq nnmh-current-directory pathname)
- (nnheader-report 'nnmh "Not a directory: %s" nnmh-directory)))))
-
-(defun nnmh-possibly-create-directory (group)
- (let (dir dirs)
- (setq dir (nnmail-group-pathname group nnmh-directory))
- (while (not (file-directory-p dir))
- (push dir dirs)
- (setq dir (file-name-directory (directory-file-name dir))))
- (while dirs
- (when (make-directory (directory-file-name (car dirs)))
- (error "Could not create directory %s" (car dirs)))
- (nnheader-message 5 "Creating mail directory %s" (car dirs))
- (setq dirs (cdr dirs)))))
-
-(defun nnmh-save-mail (group-art &optional noinsert)
- "Called narrowed to an article."
- (unless noinsert
- (nnmail-insert-lines)
- (nnmail-insert-xref group-art))
- (run-hooks 'nnmail-prepare-save-mail-hook)
- (run-hooks 'nnmh-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
- (nnmh-possibly-create-directory (caar ga))
- (let ((file (concat (nnmail-group-pathname
- (caar ga) nnmh-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 nil)
- (setq first file)))
- (setq ga (cdr ga))))
- group-art)
-
-(defun nnmh-active-number (group)
- "Compute the next article number in GROUP."
- (let ((active (cadr (assoc group nnmh-group-alist)))
- (dir (nnmail-group-pathname group nnmh-directory))
- (file-name-coding-system nnmail-pathname-coding-system)
- file)
- (unless active
- ;; The group wasn't known to nnmh, so we just create an active
- ;; entry for it.
- (setq active (cons 1 0))
- (push (list group active) nnmh-group-alist)
- (unless (file-exists-p dir)
- (gnus-make-directory dir))
- ;; Find the highest number in the group.
- (let ((files (sort
- (mapcar
- (lambda (f)
- (string-to-number f))
- (directory-files dir nil "^[0-9]+$"))
- '>)))
- (when files
- (setcdr active (car files)))))
- (setcdr active (1+ (cdr active)))
- (while (or
- ;; See whether the file exists...
- (file-exists-p
- (setq file (concat (nnmail-group-pathname group nnmh-directory)
- (int-to-string (cdr active)))))
- ;; ... or there is a buffer that will make that file exist
- ;; in the future.
- (get-file-buffer file))
- ;; Skip past that file.
- (setcdr active (1+ (cdr active))))
- (cdr active)))
-
-(defun nnmh-update-gnus-unreads (group)
- ;; Go through the .nnmh-articles file and compare with the actual
- ;; articles in this folder. The articles that are "new" will be
- ;; marked as unread by Gnus.
- (let* ((dir nnmh-current-directory)
- (files (sort (mapcar (function (lambda (name) (string-to-number name)))
- (directory-files nnmh-current-directory
- nil "^[0-9]+$" t))
- '<))
- (nnmh-file (concat dir ".nnmh-articles"))
- new articles)
- ;; Load the .nnmh-articles file.
- (when (file-exists-p nnmh-file)
- (setq articles
- (let (nnmh-newsgroup-articles)
- (ignore-errors (load nnmh-file nil t t))
- nnmh-newsgroup-articles)))
- ;; Add all new articles to the `new' list.
- (let ((art files))
- (while art
- (unless (assq (car art) articles)
- (push (car art) new))
- (setq art (cdr art))))
- ;; Remove all deleted articles.
- (let ((art articles))
- (while art
- (unless (memq (caar art) files)
- (setq articles (delq (car art) articles)))
- (setq art (cdr art))))
- ;; Check whether the articles really are the ones that Gnus thinks
- ;; they are by looking at the time-stamps.
- (let ((arts articles)
- art)
- (while (setq art (pop arts))
- (when (not (equal
- (nth 5 (file-attributes
- (concat dir (int-to-string (car art)))))
- (cdr art)))
- (setq articles (delq art articles))
- (push (car art) new))))
- ;; Go through all the new articles and add them, and their
- ;; time-stamps, to the list.
- (setq articles
- (nconc articles
- (mapcar
- (lambda (art)
- (cons art
- (nth 5 (file-attributes
- (concat dir (int-to-string art))))))
- new)))
- ;; Make Gnus mark all new articles as unread.
- (when new
- (gnus-make-articles-unread
- (gnus-group-prefixed-name group (list 'nnmh ""))
- (setq new (sort new '<))))
- ;; Sort the article list with highest numbers first.
- (setq articles (sort articles (lambda (art1 art2)
- (> (car art1) (car art2)))))
- ;; Finally write this list back to the .nnmh-articles file.
- (with-temp-file nnmh-file
- (insert ";; Gnus article active file for " group "\n\n")
- (insert "(setq nnmh-newsgroup-articles '")
- (gnus-prin1 articles)
- (insert ")\n"))))
-
-(defun nnmh-deletable-article-p (group article)
- "Say whether ARTICLE in GROUP can be deleted."
- (let ((path (concat nnmh-current-directory (int-to-string article))))
- ;; Writable.
- (and (file-writable-p path)
- (or
- ;; We can never delete the last article in the group.
- (not (eq (cdr (nth 1 (assoc group nnmh-group-alist)))
- article))
- ;; Well, we can.
- nnmh-allow-delete-final))))
-
-(provide 'nnmh)
-
-;;; arch-tag: 36c12a98-3bad-44b3-9953-628078ef0e04
-;;; nnmh.el ends here
projects / packages / blobdiff