;;; gnus-cache.el --- cache interface for Gnus
-;; Copyright (C) 1995,96,97,98 Free Software Foundation, Inc.
+;; Copyright (C) 1995,96,97,98,99 Free Software Foundation, Inc.
-;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
+;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; Keywords: news
;; This file is part of GNU Emacs.
: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\"."
+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.
(set-buffer buffer)
(if (> (buffer-size) 0)
;; Non-empty overview, write it to a file.
- (gnus-write-buffer overview-file)
+ (let ((coding-system-for-write
+ gnus-cache-overview-coding-system))
+ (gnus-write-buffer overview-file))
;; Empty overview file, remove it
(when (file-exists-p overview-file)
(delete-file overview-file))
(setq gnus-cache-buffer nil))))
(defun gnus-cache-possibly-enter-article
- (group article headers ticked dormant unread &optional force)
+ (group article ticked dormant unread &optional force)
(when (and (or force (not (eq gnus-use-cache 'passive)))
(numberp article)
- (> article 0)
- (vectorp headers)) ; This might be a dummy article.
- ;; 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)
- headers (copy-sequence headers))
- (mail-header-set-number headers (cdr result))))
- (let ((number (mail-header-number headers))
- file dir)
+ (> article 0)) ; This might be a dummy article.
+ (let ((number article) file headers)
+ ;; 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 (or (not gnus-uncacheable-groups)
+ (and (or (not gnus-cacheable-groups)
+ (string-match gnus-cacheable-groups group))
+ (or (not gnus-uncacheable-groups)
(not (string-match
gnus-uncacheable-groups group)))
(gnus-cache-member-of-class
(not (file-exists-p (setq file (gnus-cache-file-name
group number)))))
;; Possibly create the cache directory.
- (gnus-make-directory (setq dir (file-name-directory file)))
+ (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)
- (let ((gnus-use-cache nil))
+ (let ((gnus-use-cache nil)
+ (gnus-article-decode-hook nil))
(gnus-request-article-this-buffer number group))
(when (> (buffer-size) 0)
(gnus-write-buffer 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))
(beginning-of-line))
(forward-line 1))
(beginning-of-line)
- ;; [number subject from date id references chars lines xref]
- (insert (format "%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t\n"
- (mail-header-number headers)
- (mail-header-subject headers)
- (mail-header-from headers)
- (mail-header-date headers)
- (mail-header-id headers)
- (or (mail-header-references headers) "")
- (or (mail-header-chars headers) "")
- (or (mail-header-lines headers) "")
- (or (mail-header-xref headers) "")))
+ (nnheader-insert-nov headers)
;; Update the active info.
(set-buffer gnus-summary-buffer)
(gnus-cache-update-active group number)
(when (file-exists-p file)
(erase-buffer)
(gnus-kill-all-overlays)
- (insert-file-contents file)
+ (let ((coding-system-for-read gnus-cache-coding-system))
+ (insert-file-contents file))
t)))
(defun gnus-cache-possibly-alter-active (group active)
;; unsuccessful), so we use the cached headers exclusively.
(set-buffer nntp-server-buffer)
(erase-buffer)
- (insert-file-contents cache-file)
+ (let ((coding-system-for-read
+ gnus-cache-overview-coding-system))
+ (insert-file-contents cache-file))
'nov)
((eq type 'nov)
;; We have both cached and uncached NOV headers, so we
(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))
(defun gnus-summary-insert-cached-articles ()
"Insert all the articles cached for this group into the current buffer."
(interactive)
- (let ((cached gnus-newsgroup-cached)
+ (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"))
(save-excursion
(setq gnus-cache-buffer
(cons group
- (set-buffer (get-buffer-create " *gnus-cache-overview*"))))
- (buffer-disable-undo (current-buffer))
+ (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")))
(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)
+ gnus-newsgroup-name article
nil nil nil t))))
(defun gnus-cache-possibly-remove-article (article ticked dormant unread
articles)))
(defun gnus-cache-braid-nov (group cached &optional file)
- (let ((cache-buf (get-buffer-create " *gnus-cache*"))
+ (let ((cache-buf (gnus-get-buffer-create " *gnus-cache*"))
beg end)
(gnus-cache-save-buffers)
(save-excursion
(set-buffer cache-buf)
- (buffer-disable-undo (current-buffer))
(erase-buffer)
- (insert-file-contents (or file (gnus-cache-file-name group ".overview")))
+ (let ((coding-system-for-read
+ gnus-cache-overview-coding-system))
+ (insert-file-contents
+ (or file (gnus-cache-file-name group ".overview"))))
(goto-char (point-min))
(insert "\n")
(goto-char (point-min)))
(kill-buffer cache-buf)))
(defun gnus-cache-braid-heads (group cached)
- (let ((cache-buf (get-buffer-create " *gnus-cache*")))
+ (let ((cache-buf (gnus-get-buffer-create " *gnus-cache*")))
(save-excursion
(set-buffer cache-buf)
- (buffer-disable-undo (current-buffer))
(erase-buffer))
(set-buffer nntp-server-buffer)
(goto-char (point-min))
(save-excursion
(set-buffer cache-buf)
(erase-buffer)
- (insert-file-contents (gnus-cache-file-name group (car cached)))
+ (let ((coding-system-for-read
+ gnus-cache-coding-system))
+ (insert-file-contents (gnus-cache-file-name group (car cached))))
(goto-char (point-min))
(insert "220 ")
(princ (car cached) (current-buffer))
"Read the cache active file."
(gnus-make-directory gnus-cache-directory)
(if (or (not (file-exists-p gnus-cache-active-file))
- (not (zerop (nth 7 (file-attributes 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)
(when (or force
(and gnus-cache-active-hashtb
gnus-cache-active-altered))
- (nnheader-temp-write gnus-cache-active-file
- (mapatoms
- (lambda (sym)
- (when (and sym (boundp sym))
- (insert (format "%s %d %d y\n"
- (symbol-name sym) (cdr (symbol-value sym))
- (car (symbol-value sym))))))
- gnus-cache-active-hashtb))
+ (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)))
(if top
""
(string-match
- (concat "^" (file-name-as-directory
- (expand-file-name gnus-cache-directory)))
+ (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))
(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]+$" (file-name-nondirectory (car files)))
;; Go through all the other files.
(while alphs
(when (and (file-directory-p (car alphs))
- (not (string-match "^\\.\\.?$"
+ (not (string-match "^\\."
(file-name-nondirectory (car alphs)))))
;; We descend directories.
(gnus-cache-generate-active (car alphs)))
projects / elisp / gnus.git- / blobdiff