+++ /dev/null
-;;; gnus-cache.el --- cache interface for Gnus
-;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000
-;; Free Software Foundation, Inc.
-
-;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
-;; Tatsuya Ichikawa <t-ichi@po.shiojiri.ne.jp>
-;; MORIOKA Tomohiko <morioka@jaist.ac.jp>
-;; 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:
-
-(eval-when-compile (require 'cl))
-(eval-when-compile (require 'gnus-clfns))
-
-(require 'gnus)
-(require 'gnus-int)
-(require 'gnus-range)
-(require 'gnus-start)
-(eval-when-compile
- (require 'gnus-sum))
-
-(defcustom gnus-cache-active-file
- (expand-file-name "active" gnus-cache-directory)
- "*The cache active file."
- :group 'gnus-cache
- :type 'file)
-
-(defcustom gnus-cache-enter-articles '(ticked dormant)
- "Classes of articles to enter into the cache."
- :group 'gnus-cache
- :type '(set (const ticked) (const dormant) (const unread) (const read)))
-
-(defcustom gnus-cache-remove-articles '(read)
- "Classes of articles to remove from the cache."
- :group 'gnus-cache
- :type '(set (const ticked) (const dormant) (const unread) (const read)))
-
-(defcustom gnus-cacheable-groups nil
- "*Groups that match this regexp will be cached.
-
-If you only want to cache your nntp groups, you could set this
-variable to \"^nntp\".
-
-If a group matches both gnus-cacheable-groups and gnus-uncacheable-groups
-it's not cached."
- :group 'gnus-cache
- :type '(choice (const :tag "off" nil)
- regexp))
-
-(defcustom gnus-uncacheable-groups nil
- "*Groups that match this regexp will not be cached.
-
-If you want to avoid caching your nnml groups, you could set this
-variable to \"^nnml\".
-
-If a group matches both gnus-cacheable-groups and gnus-uncacheable-groups
-it's not cached."
- :group 'gnus-cache
- :type '(choice (const :tag "off" nil)
- regexp))
-
-(defvar gnus-cache-overview-coding-system 'raw-text
- "Coding system used on Gnus cache files.")
-
-(defvar gnus-cache-coding-system 'raw-text
- "Coding system used on Gnus cache files.")
-
-\f
-
-;;; Internal variables.
-
-(defvar gnus-cache-removable-articles nil)
-(defvar gnus-cache-buffer nil)
-(defvar gnus-cache-active-hashtb nil)
-(defvar gnus-cache-active-altered nil)
-(defvar gnus-cache-write-file-coding-system 'raw-text)
-
-(eval-and-compile
- (autoload 'nnml-generate-nov-databases-1 "nnml")
- (autoload 'nnvirtual-find-group-art "nnvirtual"))
-
-\f
-
-;;; Functions called from Gnus.
-
-(defun gnus-cache-open ()
- "Initialize the cache."
- (when (or (file-exists-p gnus-cache-directory)
- (and gnus-use-cache
- (not (eq gnus-use-cache 'passive))))
- (gnus-cache-read-active)))
-
-;; Complexities of byte-compiling make this kludge necessary. Eeek.
-(ignore-errors
- (gnus-add-shutdown 'gnus-cache-close 'gnus))
-
-(defun gnus-cache-close ()
- "Shut down the cache."
- (gnus-cache-write-active)
- (gnus-cache-save-buffers)
- (setq gnus-cache-active-hashtb nil))
-
-(defun gnus-cache-save-buffers ()
- ;; save the overview buffer if it exists and has been modified
- ;; delete empty cache subdirectories
- (when gnus-cache-buffer
- (let ((buffer (cdr gnus-cache-buffer))
- (overview-file (gnus-cache-file-name
- (car gnus-cache-buffer) ".overview")))
- ;; write the overview only if it was modified
- (when (buffer-modified-p buffer)
- (save-excursion
- (set-buffer buffer)
- (if (> (buffer-size) 0)
- ;; Non-empty overview, write it to a file.
- (gnus-write-buffer-as-coding-system
- gnus-cache-overview-coding-system overview-file)
- ;; Empty overview file, remove it
- (when (file-exists-p overview-file)
- (delete-file overview-file))
- ;; If possible, remove group's cache subdirectory.
- (condition-case nil
- ;; FIXME: we can detect the error type and warn the user
- ;; of any inconsistencies (articles w/o nov entries?).
- ;; for now, just be conservative...delete only if safe -- sj
- (delete-directory (file-name-directory overview-file))
- (error nil)))))
- ;; Kill the buffer -- it's either unmodified or saved.
- (gnus-kill-buffer buffer)
- (setq gnus-cache-buffer nil))))
-
-(defun gnus-cache-possibly-enter-article
- (group article headers ticked dormant unread &optional force)
- (when (and (or force (not (eq gnus-use-cache 'passive)))
- (numberp article)
- (> article 0) ; This might be a dummy article.
- (vectorp headers))
- (let ((number article) file)
- ;; If this is a virtual group, we find the real group.
- (when (gnus-virtual-group-p group)
- (let ((result (nnvirtual-find-group-art
- (gnus-group-real-name group) article)))
- (setq group (car result)
- number (cdr result))))
- (when (and number
- (> number 0) ; Reffed article.
- (or force
- (and (gnus-cache-fully-p group)
- (gnus-cache-member-of-class
- gnus-cache-enter-articles ticked dormant unread)))
- (not (file-exists-p (setq file (gnus-cache-file-name
- group number)))))
- ;; Possibly create the cache directory.
- (gnus-make-directory (file-name-directory file))
- ;; Save the article in the cache.
- (if (file-exists-p file)
- t ; The article already is saved.
- (save-excursion
- (set-buffer nntp-server-buffer)
- (require 'gnus-art)
- (let ((gnus-use-cache nil)
- (gnus-article-decode-hook nil))
- (gnus-request-article-this-buffer number group))
- (when (> (buffer-size) 0)
- (gnus-write-buffer-as-coding-system
- gnus-cache-write-file-coding-system file)
- (setq headers (nnheader-parse-head t))
- (mail-header-set-number headers number)
- (gnus-cache-change-buffer group)
- (set-buffer (cdr gnus-cache-buffer))
- (goto-char (point-max))
- (forward-line -1)
- (while (condition-case ()
- (when (not (bobp))
- (> (read (current-buffer)) number))
- (error
- ;; The line was malformed, so we just remove it!!
- (gnus-delete-line)
- t))
- (forward-line -1))
- (if (bobp)
- (if (not (eobp))
- (progn
- (beginning-of-line)
- (when (< (read (current-buffer)) number)
- (forward-line 1)))
- (beginning-of-line))
- (forward-line 1))
- (beginning-of-line)
- (nnheader-insert-nov headers)
- ;; Update the active info.
- (set-buffer gnus-summary-buffer)
- (gnus-cache-possibly-update-active group (cons number number))
- (push article gnus-newsgroup-cached)
- (gnus-summary-update-secondary-mark article))
- t))))))
-
-(defun gnus-cache-enter-remove-article (article)
- "Mark ARTICLE for later possible removal."
- (when article
- (push article gnus-cache-removable-articles)))
-
-(defun gnus-cache-possibly-remove-articles ()
- "Possibly remove some of the removable articles."
- (if (not (gnus-virtual-group-p gnus-newsgroup-name))
- (gnus-cache-possibly-remove-articles-1)
- (let ((arts gnus-cache-removable-articles)
- ga)
- (while arts
- (when (setq ga (nnvirtual-find-group-art
- (gnus-group-real-name gnus-newsgroup-name) (pop arts)))
- (let ((gnus-cache-removable-articles (list (cdr ga)))
- (gnus-newsgroup-name (car ga)))
- (gnus-cache-possibly-remove-articles-1)))))
- (setq gnus-cache-removable-articles nil)))
-
-(defun gnus-cache-possibly-remove-articles-1 ()
- "Possibly remove some of the removable articles."
- (when (gnus-cache-fully-p gnus-newsgroup-name)
- (let ((articles gnus-cache-removable-articles)
- (cache-articles gnus-newsgroup-cached)
- article)
- (gnus-cache-change-buffer gnus-newsgroup-name)
- (while articles
- (when (memq (setq article (pop articles)) cache-articles)
- ;; The article was in the cache, so we see whether we are
- ;; supposed to remove it from the cache.
- (gnus-cache-possibly-remove-article
- article (memq article gnus-newsgroup-marked)
- (memq article gnus-newsgroup-dormant)
- (or (memq article gnus-newsgroup-unreads)
- (memq article gnus-newsgroup-unselected))))))
- ;; The overview file might have been modified, save it
- ;; safe because we're only called at group exit anyway.
- (gnus-cache-save-buffers)))
-
-(defun gnus-cache-request-article (article group)
- "Retrieve ARTICLE in GROUP from the cache."
- (let ((file (gnus-cache-file-name group article))
- (buffer-read-only nil))
- (when (file-exists-p file)
- (erase-buffer)
- (gnus-kill-all-overlays)
- (let ((nnheader-file-coding-system gnus-cache-coding-system))
- (nnheader-insert-file-contents file))
- t)))
-
-(defun gnus-cache-possibly-alter-active (group active)
- "Alter the ACTIVE info for GROUP to reflect the articles in the cache."
- (when gnus-cache-active-hashtb
- (let ((cache-active (gnus-gethash group gnus-cache-active-hashtb)))
- (when cache-active
- (when (< (car cache-active) (car active))
- (setcar active (car cache-active)))
- (when (> (cdr cache-active) (cdr active))
- (setcdr active (cdr cache-active)))))))
-
-(defun gnus-cache-retrieve-headers (articles group &optional fetch-old)
- "Retrieve the headers for ARTICLES in GROUP."
- (let ((cached
- (setq gnus-newsgroup-cached (gnus-cache-articles-in-group group))))
- (if (not cached)
- ;; No cached articles here, so we just retrieve them
- ;; the normal way.
- (let ((gnus-use-cache nil))
- (gnus-retrieve-headers articles group fetch-old))
- (let ((uncached-articles (gnus-sorted-intersection
- (gnus-sorted-complement articles cached)
- articles))
- (cache-file (gnus-cache-file-name group ".overview"))
- type)
- ;; We first retrieve all the headers that we don't have in
- ;; the cache.
- (let ((gnus-use-cache nil))
- (when uncached-articles
- (setq type (and articles
- (gnus-retrieve-headers
- uncached-articles group fetch-old)))))
- (gnus-cache-save-buffers)
- ;; Then we insert the cached headers.
- (save-excursion
- (cond
- ((not (file-exists-p cache-file))
- ;; There are no cached headers.
- type)
- ((null type)
- ;; There were no uncached headers (or retrieval was
- ;; unsuccessful), so we use the cached headers exclusively.
- (set-buffer nntp-server-buffer)
- (erase-buffer)
- (let ((nnheader-file-coding-system
- gnus-cache-overview-coding-system))
- (nnheader-insert-file-contents cache-file))
- 'nov)
- ((eq type 'nov)
- ;; We have both cached and uncached NOV headers, so we
- ;; braid them.
- (gnus-cache-braid-nov group cached)
- type)
- (t
- ;; We braid HEADs.
- (gnus-cache-braid-heads group (gnus-sorted-intersection
- cached articles))
- type)))))))
-
-(defun gnus-cache-enter-article (&optional n)
- "Enter the next N articles into the cache.
-If not given a prefix, use the process marked articles instead.
-Returns the list of articles entered."
- (interactive "P")
- (let ((articles (gnus-summary-work-articles n))
- article out)
- (while (setq article (pop articles))
- (gnus-summary-remove-process-mark article)
- (if (natnump article)
- (when (gnus-cache-possibly-enter-article
- gnus-newsgroup-name article
- (gnus-summary-article-header article)
- nil nil nil t)
- (push article out))
- (gnus-message 2 "Can't cache article %d" article))
- (gnus-summary-update-secondary-mark article))
- (gnus-summary-next-subject 1)
- (gnus-summary-position-point)
- (nreverse out)))
-
-(defun gnus-cache-remove-article (n)
- "Remove the next N articles from the cache.
-If not given a prefix, use the process marked articles instead.
-Returns the list of articles removed."
- (interactive "P")
- (gnus-cache-change-buffer gnus-newsgroup-name)
- (let ((articles (gnus-summary-work-articles n))
- article out)
- (while articles
- (setq article (pop articles))
- (gnus-summary-remove-process-mark article)
- (when (gnus-cache-possibly-remove-article article nil nil nil t)
- (push article out))
- (gnus-summary-update-secondary-mark article))
- (gnus-summary-next-subject 1)
- (gnus-summary-position-point)
- (nreverse out)))
-
-(defun gnus-cached-article-p (article)
- "Say whether ARTICLE is cached in the current group."
- (memq article gnus-newsgroup-cached))
-
-(defun gnus-summary-insert-cached-articles ()
- "Insert all the articles cached for this group into the current buffer."
- (interactive)
- (let ((cached (sort (copy-sequence gnus-newsgroup-cached) '>))
- (gnus-verbose (max 6 gnus-verbose)))
- (unless cached
- (gnus-message 3 "No cached articles for this group"))
- (while cached
- (gnus-summary-goto-subject (pop cached) t))))
-
-(defalias 'gnus-summary-limit-include-cached
- 'gnus-summary-insert-cached-articles)
-
-;;; Internal functions.
-
-(defun gnus-cache-change-buffer (group)
- (and gnus-cache-buffer
- ;; See if the current group's overview cache has been loaded.
- (or (string= group (car gnus-cache-buffer))
- ;; Another overview cache is current, save it.
- (gnus-cache-save-buffers)))
- ;; if gnus-cache buffer is nil, create it
- (unless gnus-cache-buffer
- ;; Create cache buffer
- (save-excursion
- (setq gnus-cache-buffer
- (cons group
- (set-buffer (gnus-get-buffer-create
- " *gnus-cache-overview*"))))
- ;; Insert the contents of this group's cache overview.
- (erase-buffer)
- (let ((file (gnus-cache-file-name group ".overview")))
- (when (file-exists-p file)
- (nnheader-insert-file-contents file)))
- ;; We have a fresh (empty/just loaded) buffer,
- ;; mark it as unmodified to save a redundant write later.
- (set-buffer-modified-p nil))))
-
-;; Return whether an article is a member of a class.
-(defun gnus-cache-member-of-class (class ticked dormant unread)
- (or (and ticked (memq 'ticked class))
- (and dormant (memq 'dormant class))
- (and unread (memq 'unread class))
- (and (not unread) (not ticked) (not dormant) (memq 'read class))))
-
-(defun gnus-cache-file-name (group article)
- (expand-file-name
- (if (stringp article) article (int-to-string article))
- (file-name-as-directory
- (expand-file-name
- (nnheader-translate-file-chars
- (if (gnus-use-long-file-name 'not-cache)
- group
- (let ((group (nnheader-replace-duplicate-chars-in-string
- (nnheader-replace-chars-in-string group ?/ ?_)
- ?. ?_)))
- ;; Translate the first colon into a slash.
- (when (string-match ":" group)
- (setq group (concat (substring group 0 (match-beginning 0))
- "/" (substring group (match-end 0)))))
- (nnheader-replace-chars-in-string group ?. ?/)))
- t)
- gnus-cache-directory))))
-
-(defun gnus-cache-update-article (group article)
- "If ARTICLE is in the cache, remove it and re-enter it."
- (gnus-cache-change-buffer group)
- (when (gnus-cache-possibly-remove-article article nil nil nil t)
- (let ((gnus-use-cache nil))
- (gnus-cache-possibly-enter-article
- gnus-newsgroup-name article (gnus-summary-article-header article)
- nil nil nil t))))
-
-(defun gnus-cache-possibly-remove-article (article ticked dormant unread
- &optional force)
- "Possibly remove ARTICLE from the cache."
- (let ((group gnus-newsgroup-name)
- (number article)
- file)
- ;; If this is a virtual group, we find the real group.
- (when (gnus-virtual-group-p group)
- (let ((result (nnvirtual-find-group-art
- (gnus-group-real-name group) article)))
- (setq group (car result)
- number (cdr result))))
- (setq file (gnus-cache-file-name group number))
- (when (and (file-exists-p file)
- (or force
- (gnus-cache-member-of-class
- gnus-cache-remove-articles ticked dormant unread)))
- (save-excursion
- (delete-file file)
- (set-buffer (cdr gnus-cache-buffer))
- (goto-char (point-min))
- (when (or (looking-at (concat (int-to-string number) "\t"))
- (search-forward (concat "\n" (int-to-string number) "\t")
- (point-max) t))
- (delete-region (progn (beginning-of-line) (point))
- (progn (forward-line 1) (point)))))
- (setq gnus-newsgroup-cached
- (delq article gnus-newsgroup-cached))
- (gnus-summary-update-secondary-mark article)
- t)))
-
-(defun gnus-cache-articles-in-group (group)
- "Return a sorted list of cached articles in GROUP."
- (let ((dir (file-name-directory (gnus-cache-file-name group 1)))
- articles)
- (when (file-exists-p dir)
- (setq articles
- (sort (mapcar (lambda (name) (string-to-int name))
- (directory-files dir nil "^[0-9]+$" t))
- '<))
- ;; Update the cache active file, just to synch more.
- (when articles
- (gnus-cache-update-active group (car articles) t)
- (gnus-cache-update-active group (car (last articles))))
- articles)))
-
-(defun gnus-cache-braid-nov (group cached &optional file)
- (let ((cache-buf (gnus-get-buffer-create " *gnus-cache*"))
- beg end)
- (gnus-cache-save-buffers)
- (save-excursion
- (set-buffer cache-buf)
- (erase-buffer)
- (let ((nnheader-file-coding-system gnus-cache-overview-coding-system))
- (nnheader-insert-file-contents
- (or file (gnus-cache-file-name group ".overview"))))
- (goto-char (point-min))
- (insert "\n")
- (goto-char (point-min)))
- (set-buffer nntp-server-buffer)
- (goto-char (point-min))
- (while cached
- (while (and (not (eobp))
- (< (read (current-buffer)) (car cached)))
- (forward-line 1))
- (beginning-of-line)
- (save-excursion
- (set-buffer cache-buf)
- (if (search-forward (concat "\n" (int-to-string (car cached)) "\t")
- nil t)
- (setq beg (progn (beginning-of-line) (point))
- end (progn (end-of-line) (point)))
- (setq beg nil)))
- (when beg
- (insert-buffer-substring cache-buf beg end)
- (insert "\n"))
- (setq cached (cdr cached)))
- (kill-buffer cache-buf)))
-
-(defun gnus-cache-braid-heads (group cached)
- (let ((cache-buf (gnus-get-buffer-create " *gnus-cache*")))
- (save-excursion
- (set-buffer cache-buf)
- (erase-buffer))
- (set-buffer nntp-server-buffer)
- (goto-char (point-min))
- (while cached
- (while (and (not (eobp))
- (looking-at "2.. +\\([0-9]+\\) ")
- (< (progn (goto-char (match-beginning 1))
- (read (current-buffer)))
- (car cached)))
- (search-forward "\n.\n" nil 'move))
- (beginning-of-line)
- (save-excursion
- (set-buffer cache-buf)
- (erase-buffer)
- (let ((nnheader-file-coding-system gnus-cache-coding-system))
- (nnheader-insert-file-contents
- (gnus-cache-file-name group (car cached))))
- (goto-char (point-min))
- (insert "220 ")
- (princ (car cached) (current-buffer))
- (insert " Article retrieved.\n")
- (search-forward "\n\n" nil 'move)
- (delete-region (point) (point-max))
- (forward-char -1)
- (insert "."))
- (insert-buffer-substring cache-buf)
- (setq cached (cdr cached)))
- (kill-buffer cache-buf)))
-
-;;;###autoload
-(defun gnus-jog-cache ()
- "Go through all groups and put the articles into the cache.
-
-Usage:
-$ emacs -batch -l ~/.emacs -l gnus -f gnus-jog-cache"
- (interactive)
- (let ((gnus-mark-article-hook nil)
- (gnus-expert-user t)
- (nnmail-spool-file nil)
- (mail-sources nil)
- (gnus-use-dribble-file nil)
- (gnus-novice-user nil)
- (gnus-large-newsgroup nil))
- ;; Start Gnus.
- (gnus)
- ;; Go through all groups...
- (gnus-group-mark-buffer)
- (gnus-group-iterate nil
- (lambda (group)
- (let (gnus-auto-select-next)
- (gnus-summary-read-group group nil t)
- ;; ... and enter the articles into the cache.
- (when (eq major-mode 'gnus-summary-mode)
- (gnus-uu-mark-buffer)
- (gnus-cache-enter-article)
- (kill-buffer (current-buffer))))))))
-
-(defun gnus-cache-read-active (&optional force)
- "Read the cache active file."
- (gnus-make-directory gnus-cache-directory)
- (if (or (not (file-exists-p gnus-cache-active-file))
- (zerop (nth 7 (file-attributes gnus-cache-active-file)))
- force)
- ;; There is no active file, so we generate one.
- (gnus-cache-generate-active)
- ;; We simply read the active file.
- (save-excursion
- (gnus-set-work-buffer)
- (nnheader-insert-file-contents gnus-cache-active-file)
- (gnus-active-to-gnus-format
- nil (setq gnus-cache-active-hashtb
- (gnus-make-hashtable
- (count-lines (point-min) (point-max)))))
- (setq gnus-cache-active-altered nil))))
-
-(defun gnus-cache-write-active (&optional force)
- "Write the active hashtb to the active file."
- (when (or force
- (and gnus-cache-active-hashtb
- gnus-cache-active-altered))
- (gnus-write-active-file gnus-cache-active-file gnus-cache-active-hashtb t)
- ;; Mark the active hashtb as unaltered.
- (setq gnus-cache-active-altered nil)))
-
-(defun gnus-cache-possibly-update-active (group active)
- "Update active info bounds of GROUP with ACTIVE if necessary.
-The update is performed if ACTIVE contains a higher or lower bound
-than the current."
- (let ((lower t) (higher t))
- (if gnus-cache-active-hashtb
- (let ((cache-active (gnus-gethash group gnus-cache-active-hashtb)))
- (when cache-active
- (unless (< (car active) (car cache-active))
- (setq lower nil))
- (unless (> (cdr active) (cdr cache-active))
- (setq higher nil))))
- (gnus-cache-read-active))
- (when lower
- (gnus-cache-update-active group (car active) t))
- (when higher
- (gnus-cache-update-active group (cdr active)))))
-
-(defun gnus-cache-update-active (group number &optional low)
- "Update the upper bound of the active info of GROUP to NUMBER.
-If LOW, update the lower bound instead."
- (let ((active (gnus-gethash group gnus-cache-active-hashtb)))
- (if (null active)
- ;; We just create a new active entry for this group.
- (gnus-sethash group (cons number number) gnus-cache-active-hashtb)
- ;; Update the lower or upper bound.
- (if low
- (setcar active number)
- (setcdr active number)))
- ;; Mark the active hashtb as altered.
- (setq gnus-cache-active-altered t)))
-
-;;;###autoload
-(defun gnus-cache-generate-active (&optional directory)
- "Generate the cache active file."
- (interactive)
- (let* ((top (null directory))
- (directory (expand-file-name (or directory gnus-cache-directory)))
- (files (directory-files directory 'full))
- (group
- (if top
- ""
- (string-match
- (concat "^" (regexp-quote
- (file-name-as-directory
- (expand-file-name gnus-cache-directory))))
- (directory-file-name directory))
- (nnheader-replace-chars-in-string
- (substring (directory-file-name directory) (match-end 0))
- ?/ ?.)))
- nums alphs)
- (when top
- (gnus-message 5 "Generating the cache active file...")
- (setq gnus-cache-active-hashtb (gnus-make-hashtable 123)))
- (when (string-match "^\\(nn[^_]+\\)_" group)
- (setq group (replace-match "\\1:" t t group)))
- ;; Separate articles from all other files and directories.
- (while files
- (if (string-match "^[0-9]+$" (file-name-nondirectory (car files)))
- (push (string-to-int (file-name-nondirectory (pop files))) nums)
- (push (pop files) alphs)))
- ;; If we have nums, then this is probably a valid group.
- (when (setq nums (sort nums '<))
- (gnus-sethash group (cons (car nums) (gnus-last-element nums))
- gnus-cache-active-hashtb))
- ;; Go through all the other files.
- (while alphs
- (when (and (file-directory-p (car alphs))
- (not (string-match "^\\."
- (file-name-nondirectory (car alphs)))))
- ;; We descend directories.
- (gnus-cache-generate-active (car alphs)))
- (setq alphs (cdr alphs)))
- ;; Write the new active file.
- (when top
- (gnus-cache-write-active t)
- (gnus-message 5 "Generating the cache active file...done"))))
-
-;;;###autoload
-(defun gnus-cache-generate-nov-databases (dir)
- "Generate NOV files recursively starting in DIR."
- (interactive (list gnus-cache-directory))
- (gnus-cache-close)
- (let ((nnml-generate-active-function 'identity))
- (nnml-generate-nov-databases-1 dir))
- (gnus-cache-open))
-
-(defun gnus-cache-move-cache (dir)
- "Move the cache tree to somewhere else."
- (interactive "FMove the cache tree to: ")
- (rename-file gnus-cache-directory dir))
-
-(defun gnus-cache-fully-p (&optional group)
- "Returns non-nil if the cache should be fully used.
-If GROUP is non-nil, also cater to `gnus-cacheable-groups' and
-`gnus-uncacheable-groups'."
- (and gnus-use-cache
- (not (eq gnus-use-cache 'passive))
- (if (null group)
- t
- (and (or (not gnus-cacheable-groups)
- (string-match gnus-cacheable-groups group))
- (or (not gnus-uncacheable-groups)
- (not (string-match gnus-uncacheable-groups group)))))))
-
-(provide 'gnus-cache)
-
-;;; gnus-cache.el ends here
projects / elisp / gnus.git- / blobdiff