;;; gnus-agent.el --- unplugged support for Gnus
-;; Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002
+;; Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003
;; Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
:group 'gnus-agent
:type 'integer)
-(defcustom gnus-agent-expire-days 7
+(defcustom gnus-agent-expire-days nil
"Read articles older than this will be expired.
-This can also be a list of regexp/day pairs. The regexps will
-be matched against group names."
+This can also be a list of regexp/day pairs. The regexps will be
+matched against group names. If nil, articles in the agent cache are
+never expired."
:group 'gnus-agent
- :type 'integer)
+ :type '(choice (number :tag "days")
+ (const :tag "never" nil)))
(defcustom gnus-agent-expire-all nil
"If non-nil, also expire unread, ticked and dormant articles.
:group 'gnus-agent)
(defcustom gnus-agent-max-fetch-size 10000000 ;; 10 Mb
- "gnus-agent-fetch-session is required to split its article fetches into chunks smaller than this limit."
+ "Chunk size for `gnus-agent-fetch-session'.
+The function will split its article fetches into chunks smaller than
+this limit."
:group 'gnus-agent
:type 'integer)
(defvar gnus-agent-buffer-alist nil)
(defvar gnus-agent-article-alist nil
"An assoc list identifying the articles whose headers have been fetched.
- If successfully fetched, these headers will be stored in the group's overview file.
- The key of each assoc pair is the article ID.
- The value of each assoc pair is a flag indicating
- whether the identified article has been downloaded (gnus-agent-fetch-articles
- sets the value to the day of the download).
- NOTES:
- 1) The last element of this list can not be expired as some
- routines (for example, get-agent-fetch-headers) use the last
- value to track which articles have had their headers retrieved.
- 2) The gnus-agent-regenerate may destructively modify the value.
+If successfully fetched, these headers will be stored in the group's overview
+file. The key of each assoc pair is the article ID, the value of each assoc
+pair is a flag indicating whether the identified article has been downloaded
+\(gnus-agent-fetch-articles sets the value to the day of the download).
+NOTES:
+1) The last element of this list can not be expired as some
+ routines (for example, get-agent-fetch-headers) use the last
+ value to track which articles have had their headers retrieved.
+2) The gnus-agent-regenerate may destructively modify the value.
")
(defvar gnus-agent-group-alist nil)
(defvar gnus-category-alist nil)
(gnus-open-agent)
(add-hook 'gnus-setup-news-hook 'gnus-agent-queue-setup)
(unless gnus-agent-send-mail-function
- (setq gnus-agent-send-mail-function (or
- message-send-mail-real-function
- message-send-mail-function)
+ (setq gnus-agent-send-mail-function
+ (or message-send-mail-real-function
+ message-send-mail-function)
message-send-mail-real-function 'gnus-agent-send-mail))
+
(unless gnus-agent-covered-methods
(mapcar
(lambda (server)
(let ((a (caar alist))
(h (mail-header-number (car headers))))
(cond ((< a h)
- (pop alist)) ; ignore IDs in the alist that are not being displayed in the summary
+ ;; Ignore IDs in the alist that are not being
+ ;; displayed in the summary.
+ (pop alist))
((> a h)
- ;; headers that are not in the alist should be
+ ;; Headers that are not in the alist should be
;; fictious (see nnagent-retrieve-headers); they
;; imply that this article isn't in the agent.
(gnus-agent-append-to-list tail-undownloaded h)
gnus-newsgroup-unfetched (cdr unfetched))))))
(defun gnus-agent-catchup ()
- "Mark all articles as read that are neither cached, downloaded, nor downloadable."
+ "Mark as read all unhandled articles.
+An article is unhandled if it is neither cached, nor downloaded, nor
+downloadable."
(interactive)
(save-excursion
(let ((articles gnus-newsgroup-undownloaded))
(when (or gnus-newsgroup-downloadable
gnus-newsgroup-cached)
- (setq articles (gnus-sorted-ndifference (gnus-sorted-ndifference (copy-sequence articles) gnus-newsgroup-downloadable) gnus-newsgroup-cached)))
+ (setq articles (gnus-sorted-ndifference
+ (gnus-sorted-ndifference
+ (copy-sequence articles)
+ gnus-newsgroup-downloadable)
+ gnus-newsgroup-cached)))
(while articles
(gnus-summary-mark-article
(when gnus-newsgroup-processable
(setq gnus-newsgroup-downloadable
(let* ((dl gnus-newsgroup-downloadable)
- (gnus-newsgroup-downloadable (sort (copy-sequence gnus-newsgroup-processable) '<))
+ (gnus-newsgroup-downloadable
+ (sort (copy-sequence gnus-newsgroup-processable) '<))
(fetched-articles (gnus-agent-summary-fetch-group)))
;; The preceeding call to (gnus-agent-summary-fetch-group)
;; updated gnus-newsgroup-downloadable to remove each
(error "No articles to download"))
(gnus-agent-with-fetch
(setq gnus-newsgroup-undownloaded
- (gnus-sorted-ndifference gnus-newsgroup-undownloaded
- (setq fetched-articles (gnus-agent-fetch-articles gnus-newsgroup-name articles)))))
+ (gnus-sorted-ndifference
+ gnus-newsgroup-undownloaded
+ (setq fetched-articles
+ (gnus-agent-fetch-articles
+ gnus-newsgroup-name articles)))))
(save-excursion
(dolist (article articles)
;; new one. I do this after adding the article as I want at
;; least one article in each set.
(when (< gnus-agent-max-fetch-size
- (setq current-set-size (+ current-set-size (if (= header-number article)
- (mail-header-chars (car headers))
- 0))))
+ (setq current-set-size
+ (+ current-set-size
+ (if (= header-number article)
+ (mail-header-chars (car headers))
+ 0))))
(setcar selected-sets (nreverse (car selected-sets)))
(setq selected-sets (cons nil selected-sets)
current-set-size 0))))
(goto-char (point-max))
(push (cons article (point)) pos)
(insert-buffer-substring nntp-server-buffer)))
- (copy-to-buffer nntp-server-buffer (point-min) (point-max))
+ (copy-to-buffer
+ nntp-server-buffer (point-min) (point-max))
(setq pos (nreverse pos)))))
;; Then save these articles into the Agent.
(save-excursion
(while (looking-at "\\([^: \n]+\\):\\([0-9]+\\) *")
(push (cons (buffer-substring (match-beginning 1)
(match-end 1))
- (string-to-int (buffer-substring (match-beginning 2)
- (match-end 2))))
+ (string-to-int
+ (buffer-substring (match-beginning 2)
+ (match-end 2))))
crosses)
(goto-char (match-end 0)))
(gnus-agent-crosspost crosses (caar pos) date)))
(if (not (re-search-forward
"^Message-ID: *<\\([^>\n]+\\)>" nil t))
(setq id "No-Message-ID-in-article")
- (setq id (buffer-substring (match-beginning 1) (match-end 1))))
+ (setq id (buffer-substring
+ (match-beginning 1) (match-end 1))))
(let ((coding-system-for-write
gnus-agent-file-coding-system))
(write-region (point-min) (point-max)
(concat dir (number-to-string (caar pos)))
nil 'silent))
- (gnus-agent-append-to-list tail-fetched-articles (caar pos)))
+ (gnus-agent-append-to-list
+ tail-fetched-articles (caar pos)))
(widen)
(pop pos))))
(let ((root (gnus-agent-article-name ".overview" gnus-newsgroup-name))
(cnt 0)
name)
- (while (file-exists-p (setq name (concat root "~" (int-to-string (setq cnt (1+ cnt))) "~"))))
+ (while (file-exists-p
+ (setq name (concat root "~"
+ (int-to-string (setq cnt (1+ cnt))) "~"))))
(write-region (point-min) (point-max) name nil 'no-msg)
- (gnus-message 1 "Created backup copy of overview in %s." name)
- )
- )
+ (gnus-message 1 "Created backup copy of overview in %s." name)))
t)
(defun gnus-agent-check-overview-buffer (&optional buffer)
nil 'silent))
(pop gnus-agent-buffer-alist))
(while gnus-agent-group-alist
- (with-temp-file (gnus-agent-article-name ".agentview" (caar gnus-agent-group-alist))
+ (with-temp-file (gnus-agent-article-name
+ ".agentview" (caar gnus-agent-group-alist))
(princ (cdar gnus-agent-group-alist))
(insert "\n")
(princ 1 (current-buffer))
(setq articles (gnus-range-add articles (cdr arts)))))
(setq articles (sort (gnus-uncompress-sequence articles) '<)))
- ;; At this point, I have the list of articles to consider for fetching.
- ;; This is the list that I'll return to my caller. Some of these articles may have already
- ;; been fetched. That's OK as the fetch article code will filter those out.
- ;; Internally, I'll filter this list to just those articles whose headers need to be fetched.
+ ;; At this point, I have the list of articles to consider for
+ ;; fetching. This is the list that I'll return to my caller. Some
+ ;; of these articles may have already been fetched. That's OK as
+ ;; the fetch article code will filter those out. Internally, I'll
+ ;; filter this list to just those articles whose headers need to
+ ;; be fetched.
(let ((articles articles))
;; Remove known articles.
(when (gnus-agent-load-alist group)
;; Remove articles marked as downloaded.
(if fetch-all
- ;; I want to fetch all headers in the active range.
- ;; Therefore, exclude only those headers that are in the article alist.
- ;; NOTE: This is probably NOT what I want to do after agent expiration in this group.
+ ;; I want to fetch all headers in the active range.
+ ;; Therefore, exclude only those headers that are in the
+ ;; article alist.
+ ;; NOTE: This is probably NOT what I want to do after
+ ;; agent expiration in this group.
(setq articles (gnus-agent-uncached-articles articles group))
- ;; I want to only fetch those headers that have never been fetched.
- ;; Therefore, exclude all headers that are, or WERE, in the article alist.
+ ;; I want to only fetch those headers that have never been
+ ;; fetched. Therefore, exclude all headers that are, or
+ ;; WERE, in the article alist.
(let ((low (1+ (caar (last gnus-agent-article-alist))))
(high (cdr (gnus-active group))))
- ;; Low can be greater than High when the same group is fetched twice
- ;; in the same session {The first fetch will fill the article alist
- ;; such that (last gnus-agent-article-alist) equals (cdr (gnus-active group))}.
- ;; The addition of one(the 1+ above) then forces Low to be greater than High.
- ;; When this happens, gnus-list-range-intersection returns nil which indicates
- ;; that no headers need to be fetched. -- Kevin
+ ;; Low can be greater than High when the same group is
+ ;; fetched twice in the same session {The first fetch will
+ ;; fill the article alist such that (last
+ ;; gnus-agent-article-alist) equals (cdr (gnus-active
+ ;; group))}. The addition of one(the 1+ above) then
+ ;; forces Low to be greater than High. When this happens,
+ ;; gnus-list-range-intersection returns nil which
+ ;; indicates that no headers need to be fetched. -- Kevin
(setq articles (gnus-list-range-intersection
articles (list (cons low high)))))))
- (gnus-message 10 "gnus-agent-fetch-headers: undownloaded articles are '%s'" (gnus-compress-sequence articles t))
+ (gnus-message
+ 10 "gnus-agent-fetch-headers: undownloaded articles are '%s'"
+ (gnus-compress-sequence articles t))
(save-excursion
(set-buffer nntp-server-buffer)
(unless (eq 'nov (gnus-retrieve-headers articles group))
(nnvirtual-convert-headers))
(gnus-agent-check-overview-buffer)
- ;; Move these headers to the overview buffer so that gnus-agent-braid-nov can merge them
- ;; with the contents of FILE.
- (copy-to-buffer gnus-agent-overview-buffer (point-min) (point-max))
+ ;; Move these headers to the overview buffer so that
+ ;; gnus-agent-braid-nov can merge them with the contents
+ ;; of FILE.
+ (copy-to-buffer
+ gnus-agent-overview-buffer (point-min) (point-max))
(when (file-exists-p file)
(gnus-agent-braid-nov group articles file))
(let ((coding-system-for-write
(insert-buffer-substring gnus-agent-overview-buffer b e))))
(defun gnus-agent-braid-nov (group articles file)
- "Merges the article headers identified by ARTICLES from gnus-agent-overview-buffer with the contents
-of FILE placing the combined headers in nntp-server-buffer."
+ "Merge agent overview data with given file.
+Takes headers for ARTICLES from `gnus-agent-overview-buffer' and the given
+FILE and places the combined headers into `nntp-server-buffer'."
(let (start last)
(set-buffer gnus-agent-overview-buffer)
(goto-char (point-min))
(forward-line -1)
(unless (looking-at "[0-9]+\t")
;; Remove corrupted lines
- (gnus-message 1 "Overview %s is corrupted. Removing corrupted lines..." file)
+ (gnus-message
+ 1 "Overview %s is corrupted. Removing corrupted lines..." file)
(goto-char (point-min))
(while (not (eobp))
(if (looking-at "[0-9]+\t")
t)
((= art (car articles))
(beginning-of-line)
- (delete-region (point) (progn (forward-line 1) (point)))
+ (delete-region
+ (point) (progn (forward-line 1) (point)))
nil)
(t
(beginning-of-line)
(set-buffer nntp-server-buffer))
(insert-buffer-substring gnus-agent-overview-buffer start))))
-(eval-when-compile ; Keeps the compiler from warning about the free variable in gnus-agent-read-agentview
+;; Keeps the compiler from warning about the free variable in
+;; gnus-agent-read-agentview.
+(eval-when-compile
(defvar gnus-agent-read-agentview))
(defun gnus-agent-load-alist (group)
- (let ((gnus-agent-read-agentview group)) ; Binds free variable that's used in gnus-agent-read-agentview
- "Load the article-state alist for GROUP."
+ "Load the article-state alist for GROUP."
+ ;; Bind free variable that's used in `gnus-agent-read-agentview'.
+ (let ((gnus-agent-read-agentview group))
(setq gnus-agent-article-alist
(gnus-cache-file-contents
(gnus-agent-article-name ".agentview" group)
'gnus-agent-file-loading-cache
'gnus-agent-read-agentview))))
-;; Save format may be either 1 or 2. Two is the new, compressed format that is still being tested. Format 1 is uncompressed but known to be reliable.
+;; Save format may be either 1 or 2. Two is the new, compressed
+;; format that is still being tested. Format 1 is uncompressed but
+;; known to be reliable.
(defconst gnus-agent-article-alist-save-format 2)
(defun gnus-agent-read-agentview (file)
(end-of-file 0)))
changed-version)
- (cond ((= version 0)
- (let ((inhibit-quit t)
- entry)
- (gnus-agent-open-history)
- (set-buffer (gnus-agent-history-buffer))
- (goto-char (point-min))
- (while (not (eobp))
- (if (and (looking-at
- "[^\t\n]+\t\\([0-9]+\\)\t\\([^ \n]+\\) \\([0-9]+\\)")
- (string= (match-string 2)
- gnus-agent-read-agentview)
- (setq entry (assoc (string-to-number (match-string 3)) alist)))
- (setcdr entry (string-to-number (match-string 1))))
- (forward-line 1))
- (gnus-agent-close-history)
- (setq changed-version t)))
- ((= version 1)
- (setq changed-version (not (= 1 gnus-agent-article-alist-save-format))))
- ((= version 2)
- (let (uncomp)
- (mapcar (lambda (comp-list)
- (let ((state (car comp-list))
- (sequence (gnus-uncompress-sequence (cdr comp-list))))
- (mapcar (lambda (article-id)
- (setq uncomp (cons (cons article-id state) uncomp))) sequence))) alist)
- (setq alist (sort uncomp (lambda (first second) (< (car first) (car second)))))
- )
- ))
+ (cond
+ ((= version 0)
+ (let ((inhibit-quit t)
+ entry)
+ (gnus-agent-open-history)
+ (set-buffer (gnus-agent-history-buffer))
+ (goto-char (point-min))
+ (while (not (eobp))
+ (if (and (looking-at
+ "[^\t\n]+\t\\([0-9]+\\)\t\\([^ \n]+\\) \\([0-9]+\\)")
+ (string= (match-string 2)
+ gnus-agent-read-agentview)
+ (setq entry (assoc (string-to-number (match-string 3)) alist)))
+ (setcdr entry (string-to-number (match-string 1))))
+ (forward-line 1))
+ (gnus-agent-close-history)
+ (setq changed-version t)))
+ ((= version 1)
+ (setq changed-version (not (= 1 gnus-agent-article-alist-save-format))))
+ ((= version 2)
+ (let (uncomp)
+ (mapcar
+ (lambda (comp-list)
+ (let ((state (car comp-list))
+ (sequence (gnus-uncompress-sequence
+ (cdr comp-list))))
+ (mapcar (lambda (article-id)
+ (setq uncomp (cons (cons article-id state) uncomp)))
+ sequence)))
+ alist)
+ (setq alist (sort uncomp
+ (lambda (first second)
+ (< (car first) (car second))))))))
(when changed-version
(let ((gnus-agent-article-alist alist))
(gnus-agent-save-alist gnus-agent-read-agentview)))
(day-of-download (cdr pair))
(comp-list (assq day-of-download compressed)))
(if comp-list
- (setcdr comp-list (cons article-id (cdr comp-list)))
- (setq compressed (cons (list day-of-download article-id) compressed)))
+ (setcdr comp-list
+ (cons article-id (cdr comp-list)))
+ (setq compressed
+ (cons (list day-of-download article-id)
+ compressed)))
nil)) gnus-agent-article-alist)
- (mapcar (lambda (comp-list) (setcdr comp-list (gnus-compress-sequence (nreverse (cdr comp-list))))) compressed)
- (princ compressed (current-buffer))
- )
- )
- )
+ (mapcar (lambda (comp-list)
+ (setcdr comp-list
+ (gnus-compress-sequence
+ (nreverse (cdr comp-list)))))
+ compressed)
+ (princ compressed (current-buffer)))))
(insert "\n")
(princ gnus-agent-article-alist-save-format (current-buffer))
(insert "\n"))))
(gnus-activate-group group))
(let ((marked-articles gnus-newsgroup-downloadable))
;; Identify the articles marked for download
- (unless gnus-newsgroup-active ;; This needs to be a
- ;; gnus-summary local variable
- ;; that is NOT bound to any
- ;; value above (It's global
- ;; value should default to nil).
+ (unless gnus-newsgroup-active
+ ;; This needs to be a gnus-summary local variable that is
+ ;; NOT bound to any value above (its global value should
+ ;; default to nil).
(dolist (mark gnus-agent-download-marks)
(let ((arts (cdr (assq mark (gnus-info-marks
(setq info (gnus-get-info group)))))))
;; predicate, add it to the download list
(when (or (eq num (car marked-articles))
(let ((gnus-score
- (or (cdr (assq num gnus-newsgroup-scored))
+ (or (cdr
+ (assq num gnus-newsgroup-scored))
gnus-summary-default-score)))
(funcall predicate)))
(gnus-agent-append-to-list arts-tail num))))))
(let (fetched-articles)
;; Fetch all selected articles
(setq gnus-newsgroup-undownloaded
- (gnus-sorted-ndifference gnus-newsgroup-undownloaded
- (setq fetched-articles (if (cdr arts) (gnus-agent-fetch-articles group (cdr arts)) nil))))
-
- (let ((unfetched-articles (gnus-sorted-ndifference (cdr arts) fetched-articles)))
+ (gnus-sorted-ndifference
+ gnus-newsgroup-undownloaded
+ (setq fetched-articles
+ (if (cdr arts)
+ (gnus-agent-fetch-articles group (cdr arts))
+ nil))))
+
+ (let ((unfetched-articles
+ (gnus-sorted-ndifference (cdr arts) fetched-articles)))
(if gnus-newsgroup-active
;; Update the summary buffer
(progn
(gnus-summary-set-agent-mark article t)))
(dolist (article fetched-articles)
(if gnus-agent-mark-unread-after-downloaded
- (gnus-summary-mark-article article gnus-unread-mark))
+ (gnus-summary-mark-article
+ article gnus-unread-mark))
(when (gnus-summary-goto-subject article nil t)
(gnus-summary-update-download-mark article)))
(dolist (article unfetched-articles)
- (gnus-summary-mark-article article gnus-canceled-mark)))
+ (gnus-summary-mark-article
+ article gnus-canceled-mark)))
;; Update the group buffer.
(dolist (mark gnus-agent-download-marks)
(when (eq mark 'download)
- (let ((marked-arts (assq mark (gnus-info-marks
- (setq info (gnus-get-info group))))))
+ (let ((marked-arts
+ (assq mark (gnus-info-marks
+ (setq info (gnus-get-info group))))))
(when (cdr marked-arts)
- (setq marks (delq marked-arts (gnus-info-marks info)))
+ (setq marks
+ (delq marked-arts (gnus-info-marks info)))
(gnus-info-set-marks info marks)))))
- (let ((read (gnus-info-read (or info (setq info (gnus-get-info group))))))
- (gnus-info-set-read info (gnus-add-to-range read unfetched-articles)))
+ (let ((read (gnus-info-read
+ (or info (setq info (gnus-get-info group))))))
+ (gnus-info-set-read
+ info (gnus-add-to-range read unfetched-articles)))
(gnus-group-update-group group t)
(sit-for 0)
(or (gnus-gethash group gnus-category-group-cache)
(assq 'default gnus-category-alist)))
+(defun gnus-agent-expire-2 (expiring-group active articles overview day force
+ dir)
+ (gnus-agent-load-alist expiring-group)
+ (gnus-message 5 "Expiring articles in %s" expiring-group)
+ (let* ((info (gnus-get-info expiring-group))
+ (alist gnus-agent-article-alist)
+ (specials (if alist
+ (list (caar (last alist)))))
+ (unreads ;; Articles that are excluded from the expiration process
+ (cond (gnus-agent-expire-all
+ ;; All articles are marked read by global decree
+ nil)
+ ((eq articles t)
+ ;; All articles are marked read by function parameter
+ nil)
+ ((not articles)
+ ;; Unread articles are marked protected from
+ ;; expiration Don't call gnus-list-of-unread-articles
+ ;; as it returns articles that have not been fetched
+ ;; into the agent.
+ (ignore-errors (gnus-agent-unread-articles expiring-group)))
+ (t
+ ;; All articles EXCEPT those named by the caller are
+ ;; protected from expiration
+ (gnus-sorted-difference
+ (gnus-uncompress-range
+ (cons (caar alist) (caar (last alist))))
+ (sort articles '<)))))
+ (marked ;; More articles that are exluded from the expiration process
+ (cond (gnus-agent-expire-all
+ ;; All articles are unmarked by global decree
+ nil)
+ ((eq articles t)
+ ;; All articles are unmarked by function parameter
+ nil)
+ (articles
+ ;; All articles may as well be unmarked as the
+ ;; unreads list already names the articles we are
+ ;; going to keep
+ nil)
+ (t
+ ;; Ticked and/or dormant articles are excluded from expiration
+ (nconc
+ (gnus-uncompress-range
+ (cdr (assq 'tick (gnus-info-marks info))))
+ (gnus-uncompress-range
+ (cdr (assq 'dormant
+ (gnus-info-marks info))))))))
+ (nov-file (concat dir ".overview"))
+ (cnt 0)
+ (completed -1)
+ dlist
+ type)
+
+ ;; The normal article alist contains
+ ;; elements that look like (article# .
+ ;; fetch_date) I need to combine other
+ ;; information with this list. For
+ ;; example, a flag indicating that a
+ ;; particular article MUST BE KEPT. To
+ ;; do this, I'm going to transform the
+ ;; elements to look like (article#
+ ;; fetch_date keep_flag
+ ;; NOV_entry_marker) Later, I'll reverse
+ ;; the process to generate the expired
+ ;; article alist.
+
+ ;; Convert the alist elements to
+ ;; (article# fetch_date nil nil).
+ (setq dlist (mapcar (lambda (e) (list (car e) (cdr e) nil nil)) alist))
+
+ ;; Convert the keep lists to elements
+ ;; that look like (article# nil
+ ;; keep_flag nil) then append it to the
+ ;; expanded dlist These statements are
+ ;; sorted by ascending precidence of the
+ ;; keep_flag.
+ (setq dlist (nconc dlist (mapcar (lambda (e)
+ (list e nil 'unread nil)) unreads)))
+ (setq dlist (nconc dlist (mapcar (lambda (e)
+ (list e nil 'marked nil)) marked)))
+ (setq dlist (nconc dlist (mapcar (lambda (e)
+ (list e nil 'special nil)) specials)))
+
+ (set-buffer overview)
+ (erase-buffer)
+ (when (file-exists-p nov-file)
+ (gnus-message 7 "gnus-agent-expire: Loading overview...")
+ (nnheader-insert-file-contents nov-file)
+ (goto-char (point-min))
+
+ (let (p)
+ (while (< (setq p (point)) (point-max))
+ (condition-case nil
+ ;; If I successfully read an
+ ;; integer (the plus zero
+ ;; ensures a numeric type),
+ ;; prepend a marker entry to
+ ;; the list
+ (push (list (+ 0 (read (current-buffer))) nil nil
+ (set-marker (make-marker) p)) dlist)
+ (error
+ (gnus-message 1 (concat "gnus-agent-expire: read error occurred "
+ "when reading expression at %s in %s. "
+ "Skipping to next line.")
+ (point) nov-file)))
+ ;; Whether I succeeded, or failed,
+ ;; it doesn't matter. Move to the
+ ;; next line then try again.
+ (forward-line 1)))
+ (gnus-message 7 "gnus-agent-expire: Loading overview... Done"))
+ (set-buffer-modified-p nil)
+
+ ;; At this point, all of the information
+ ;; is in dlist. The only problem is
+ ;; that much of it is spread across
+ ;; multiple entries. Sort then MERGE!!
+ (gnus-message 7 "gnus-agent-expire: Sorting entries... ")
+ ;; If two entries have the same
+ ;; article-number then sort by ascending
+ ;; keep_flag.
+ (let ((special 0)
+ (marked 1)
+ (unread 2))
+ (setq dlist
+ (sort dlist
+ (lambda (a b)
+ (cond ((< (nth 0 a) (nth 0 b))
+ t)
+ ((> (nth 0 a) (nth 0 b))
+ nil)
+ (t
+ (let ((a (or (symbol-value (nth 2 a)) 3))
+ (b (or (symbol-value (nth 2 b)) 3)))
+ (<= a b))))))))
+ (gnus-message 7 "gnus-agent-expire: Sorting entries... Done")
+ (gnus-message 7 "gnus-agent-expire: Merging entries... ")
+ (let ((dlist dlist))
+ (while (cdr dlist) ; I'm not at the end-of-list
+ (if (eq (caar dlist) (caadr dlist))
+ (let ((first (cdr (car dlist)))
+ (secnd (cdr (cadr dlist))))
+ (setcar first (or (car first) (car secnd))) ; fetch_date
+ (setq first (cdr first)
+ secnd (cdr secnd))
+ (setcar first (or (car first) (car secnd))) ; Keep_flag
+ (setq first (cdr first)
+ secnd (cdr secnd))
+ (setcar first (or (car first) (car secnd))) ; NOV_entry_marker
+
+ (setcdr dlist (cddr dlist)))
+ (setq dlist (cdr dlist)))))
+ (gnus-message 7 "gnus-agent-expire: Merging entries... Done")
+
+ (let* ((len (float (length dlist)))
+ (alist (list nil))
+ (tail-alist alist))
+ (while dlist
+ (let ((new-completed (truncate (* 100.0 (/ (setq cnt (1+ cnt)) len)))))
+ (when (> new-completed completed)
+ (setq completed new-completed)
+ (gnus-message 9 "%3d%% completed..." completed)))
+ (let* ((entry (car dlist))
+ (article-number (nth 0 entry))
+ (fetch-date (nth 1 entry))
+ (keep (nth 2 entry))
+ (marker (nth 3 entry)))
+
+ (cond
+ ;; Kept articles are unread, marked, or special.
+ (keep
+ (when fetch-date
+ (unless (file-exists-p (concat dir (number-to-string
+ article-number)))
+ (setf (nth 1 entry) nil)
+ (gnus-message 3 (concat "gnus-agent-expire cleared download "
+ "flag on article %d as the cached "
+ "article file is missing.")
+ (caar dlist)))
+ (unless marker
+ (gnus-message 1 (concat "gnus-agent-expire detected a "
+ "missing NOV entry. Run "
+ "gnus-agent-regenerate-group to "
+ "restore it."))))
+ (gnus-agent-append-to-list tail-alist (cons article-number fetch-date)))
+
+ ;; The following articles are READ, UNMARKED, and ORDINARY.
+ ;; See if they can be EXPIRED!!!
+ ((setq type
+ (cond
+ ((not (integerp fetch-date))
+ 'read) ;; never fetched article (may expire right now)
+ ((not (file-exists-p (concat dir (number-to-string
+ article-number))))
+ (setf (nth 1 entry) nil)
+ 'externally-expired) ;; Can't find the cached
+ ;; article. Handle case as
+ ;; though this article was
+ ;; never fetched.
+
+ ;; We now have the arrival day, so we see
+ ;; whether it's old enough to be expired.
+ ((< fetch-date day)
+ 'expired)
+ (force
+ 'forced)))
+
+ ;; I found some reason to expire this entry.
+
+ (let ((actions nil))
+ (when (memq type '(forced expired))
+ (ignore-errors ; Just being paranoid.
+ (delete-file (concat dir (number-to-string article-number)))
+ (push "expired cached article" actions))
+ (setf (nth 1 entry) nil))
+
+ (when marker
+ (push "NOV entry removed" actions)
+ (goto-char marker)
+ (gnus-delete-line))
+
+ ;; If considering all articles is set, I can only expire
+ ;; article IDs that are no longer in the active range.
+ (if (and gnus-agent-consider-all-articles
+ (>= article-number (car active)))
+ ;; I have to keep this ID in the alist
+ (gnus-agent-append-to-list tail-alist
+ (cons article-number fetch-date))
+ (push (format "Removed %s article number from article alist"
+ type) actions))
+
+ (gnus-message 7 "gnus-agent-expire: Article %d: %s"
+ article-number (mapconcat 'identity
+ actions ", "))))
+ (t
+ (gnus-agent-append-to-list tail-alist (cons article-number fetch-date)))
+ )
+
+ ;; Clean up markers as I want to recycle this buffer over
+ ;; several groups.
+ (when marker
+ (set-marker marker nil))
+
+ (setq dlist (cdr dlist))))
+
+ (setq alist (cdr alist))
+
+ (let ((inhibit-quit t))
+ (unless (equal alist gnus-agent-article-alist)
+ (setq gnus-agent-article-alist alist)
+ (gnus-agent-save-alist expiring-group))
+
+ (when (buffer-modified-p)
+ (let ((coding-system-for-write
+ gnus-agent-file-coding-system))
+ (gnus-make-directory dir)
+ (write-region (point-min) (point-max) nov-file nil 'silent)
+ ;; clear the modified flag as that I'm not confused by its
+ ;; status on the next pass through this routine.
+ (set-buffer-modified-p nil)))
+
+ (when (eq articles t)
+ (gnus-summary-update-info))))))
+
+(defun gnus-agent-expire-1 (&optional articles group force)
+ "Expire all old agent cached articles unconditionally.
+See `gnus-agent-expire'."
+ (let ((methods (if group
+ (list (gnus-find-method-for-group group))
+ gnus-agent-covered-methods))
+ (day (if (numberp gnus-agent-expire-days)
+ (- (time-to-days (current-time)) gnus-agent-expire-days)
+ nil))
+ gnus-command-method sym arts pos
+ history overview file histories elem art nov-file low info
+ unreads marked article orig lowest highest found days)
+ (save-excursion
+ (setq overview (gnus-get-buffer-create " *expire overview*"))
+ (unwind-protect
+ (while (setq gnus-command-method (pop methods))
+ (when (file-exists-p (gnus-agent-lib-file "active"))
+ (with-temp-buffer
+ (nnheader-insert-file-contents
+ (gnus-agent-lib-file "active"))
+ (gnus-active-to-gnus-format
+ gnus-command-method
+ (setq orig (gnus-make-hashtable
+ (count-lines (point-min) (point-max))))))
+ (dolist (expiring-group (gnus-groups-from-server
+ gnus-command-method))
+ (if (or (not group)
+ (equal group expiring-group))
+ (let* ((dir (concat
+ (gnus-agent-directory)
+ (gnus-agent-group-path expiring-group)
+ "/"))
+ (active
+ (gnus-gethash-safe expiring-group orig))
+ (day (if (numberp day)
+ day
+ (let (found
+ (days gnus-agent-expire-days))
+ (catch 'found
+ (while (and (not found) days)
+ (when (eq 0 (string-match
+ (caar days)
+ expiring-group))
+ (throw 'found (- (time-to-days
+ (current-time))
+ (cadar days))))
+ (pop days))
+ ;; No regexp matched so set
+ ;; a limit that will block
+ ;; expiration in this group.
+ 0)))))
+
+ (when active
+ (gnus-agent-expire-2 expiring-group active
+ articles overview day force
+ dir)))))))
+ (kill-buffer overview)))))
+
(defun gnus-agent-expire (&optional articles group force)
- "Expire all old articles.
+ "Expire all old agent cached articles.
If you want to force expiring of certain articles, this function can
take ARTICLES, GROUP and FORCE parameters as well.
Setting GROUP will limit expiration to that group.
FORCE is equivalent to setting gnus-agent-expire-days to zero(0)."
(interactive)
-
- (if (or (not (eq articles t))
- (yes-or-no-p (concat "Are you sure that you want to expire all articles in " (if group group "every agentized group") ".")))
- (let ((methods (if group
- (list (gnus-find-method-for-group group))
- gnus-agent-covered-methods))
- (day (if (numberp gnus-agent-expire-days)
- (- (time-to-days (current-time)) gnus-agent-expire-days)
- nil))
- gnus-command-method sym arts pos
- history overview file histories elem art nov-file low info
- unreads marked article orig lowest highest found days)
- (save-excursion
- (setq overview (gnus-get-buffer-create " *expire overview*"))
- (unwind-protect
- (while (setq gnus-command-method (pop methods))
- (when (file-exists-p (gnus-agent-lib-file "active"))
- (with-temp-buffer
- (nnheader-insert-file-contents (gnus-agent-lib-file "active"))
- (gnus-active-to-gnus-format
- gnus-command-method
- (setq orig (gnus-make-hashtable
- (count-lines (point-min) (point-max))))))
- (dolist (expiring-group (gnus-groups-from-server gnus-command-method))
- (if (or (not group)
- (equal group expiring-group))
- (let* ((dir (concat
- (gnus-agent-directory)
- (gnus-agent-group-path expiring-group) "/"))
- (active
- (gnus-gethash-safe expiring-group orig))
- (day (if (numberp day)
- day
- (let (found
- (days gnus-agent-expire-days))
- (catch 'found
- (while (and (not found)
- days)
- (when (eq 0 (string-match (caar days) expiring-group))
- (throw 'found (- (time-to-days (current-time)) (cadar days))))
- (pop days))
- ;; No regexp matched so set a limit that will block expiration in this group
- 0)))))
-
- (when active
- (gnus-agent-load-alist expiring-group)
- (gnus-message 5 "Expiring articles in %s" expiring-group)
- (let* ((info (gnus-get-info expiring-group))
- (alist gnus-agent-article-alist)
- (specials (if alist
- (list (caar (last alist)))))
- (unreads ;; Articles that are excluded from the expiration process
- (cond (gnus-agent-expire-all
- ;; All articles are marked read by global decree
- nil)
- ((eq articles t)
- ;; All articles are marked read by function parameter
- nil)
- ((not articles)
- ;; Unread articles are marked protected from expiration
- ;; Don't call gnus-list-of-unread-articles as it returns articles that have not been fetched into the agent.
- (ignore-errors (gnus-agent-unread-articles expiring-group)))
- (t
- ;; All articles EXCEPT those named by the caller are protected from expiration
- (gnus-sorted-difference (gnus-uncompress-range (cons (caar alist) (caar (last alist)))) (sort articles '<)))))
- (marked ;; More articles that are exluded from the expiration process
- (cond (gnus-agent-expire-all
- ;; All articles are unmarked by global decree
- nil)
- ((eq articles t)
- ;; All articles are unmarked by function parameter
- nil)
- (articles
- ;; All articles may as well be unmarked as the unreads list already names the articles we are going to keep
- nil)
- (t
- ;; Ticked and/or dormant articles are excluded from expiration
- (nconc
- (gnus-uncompress-range
- (cdr (assq 'tick (gnus-info-marks info))))
- (gnus-uncompress-range
- (cdr (assq 'dormant
- (gnus-info-marks info))))))))
- (nov-file (concat dir ".overview"))
- (cnt 0)
- (completed -1)
- dlist
- type)
-
- ;; The normal article alist contains elements that look like (article# . fetch_date)
- ;; I need to combine other information with this list. For example, a flag indicating that a particular article MUST BE KEPT.
- ;; To do this, I'm going to transform the elements to look like (article# fetch_date keep_flag NOV_entry_marker)
- ;; Later, I'll reverse the process to generate the expired article alist.
-
- ;; Convert the alist elements to (article# fetch_date nil nil).
- (setq dlist (mapcar (lambda (e) (list (car e) (cdr e) nil nil)) alist))
-
- ;; Convert the keep lists to elements that look like (article# nil keep_flag nil) then append it to the expanded dlist
- ;; These statements are sorted by ascending precidence of the keep_flag.
- (setq dlist (nconc dlist
- (mapcar (lambda (e) (list e nil 'unread nil)) unreads)))
- (setq dlist (nconc dlist
- (mapcar (lambda (e) (list e nil 'marked nil)) marked)))
- (setq dlist (nconc dlist
- (mapcar (lambda (e) (list e nil 'special nil)) specials)))
-
- (set-buffer overview)
- (erase-buffer)
- (when (file-exists-p nov-file)
- (gnus-message 7 "gnus-agent-expire: Loading overview...")
- (nnheader-insert-file-contents nov-file)
- (goto-char (point-min))
-
- (let (p)
- (while (< (setq p (point)) (point-max))
- (condition-case nil
- ;; If I successfully read an integer (the plus zero ensures a numeric type), prepend a marker entry to the list
- (push (list (+ 0 (read (current-buffer))) nil nil (set-marker (make-marker) p)) dlist)
- (error
- (gnus-message 1 "gnus-agent-expire: read error occurred when reading expression at %s in %s. Skipping to next line." (point) nov-file)))
- ;; Whether I succeeded, or failed, it doesn't matter. Move to the next line then try again.
- (forward-line 1)))
- (gnus-message 7 "gnus-agent-expire: Loading overview... Done"))
- (set-buffer-modified-p nil)
-
- ;; At this point, all of the information is in dlist. The only problem is that much of it is spread across multiple entries. Sort then MERGE!!
- (gnus-message 7 "gnus-agent-expire: Sorting entries... ")
- (let ((special 0) ; If two entries have the same article-number then sort by ascending keep_flag.
- (marked 1)
- (unread 2))
- (setq dlist
- (sort dlist
- (lambda (a b)
- (cond ((< (nth 0 a) (nth 0 b))
- t)
- ((> (nth 0 a) (nth 0 b))
- nil)
- (t
- (let ((a (or (symbol-value (nth 2 a)) 3))
- (b (or (symbol-value (nth 2 b)) 3)))
- (<= a b))))))))
- (gnus-message 7 "gnus-agent-expire: Sorting entries... Done")
- (gnus-message 7 "gnus-agent-expire: Merging entries... ")
- (let ((dlist dlist))
- (while (cdr dlist) ; I'm not at the end-of-list
- (if (eq (caar dlist) (caadr dlist))
- (let ((first (cdr (car dlist)))
- (secnd (cdr (cadr dlist))))
- (setcar first (or (car first) (car secnd))) ; fetch_date
- (setq first (cdr first)
- secnd (cdr secnd))
- (setcar first (or (car first) (car secnd))) ; Keep_flag
- (setq first (cdr first)
- secnd (cdr secnd))
- (setcar first (or (car first) (car secnd))) ; NOV_entry_marker
-
- (setcdr dlist (cddr dlist)))
- (setq dlist (cdr dlist)))))
- (gnus-message 7 "gnus-agent-expire: Merging entries... Done")
-
- (let* ((len (float (length dlist)))
- (alist (list nil))
- (tail-alist alist))
- (while dlist
- (let ((new-completed (truncate (* 100.0 (/ (setq cnt (1+ cnt)) len)))))
- (when (> new-completed completed)
- (setq completed new-completed)
- (gnus-message 9 "%3d%% completed..." completed)))
- (let* ((entry (car dlist))
- (article-number (nth 0 entry))
- (fetch-date (nth 1 entry))
- (keep (nth 2 entry))
- (marker (nth 3 entry)))
-
- (cond
- ;; Kept articles are unread, marked, or special.
- (keep
- (when fetch-date
- (unless (file-exists-p (concat dir (number-to-string article-number)))
- (setf (nth 1 entry) nil)
- (gnus-message 3 "gnus-agent-expire cleared download flag on article %d as the cached article file is missing." (caar dlist)))
- (unless marker
- (gnus-message 1 "gnus-agent-expire detected a missing NOV entry. Run gnus-agent-regenerate-group to restore it.")))
- (gnus-agent-append-to-list tail-alist (cons article-number fetch-date)))
-
- ;; The following articles are READ, UNMARKED, and ORDINARY.
- ;; See if they can be EXPIRED!!!
- ((setq type
- (cond
- ((not (integerp fetch-date))
- 'read) ;; never fetched article (may expire right now)
- ((not (file-exists-p (concat dir (number-to-string article-number))))
- (setf (nth 1 entry) nil)
- 'externally-expired) ;; Can't find the cached article. Handle case as though this article was never fetched.
-
- ;; We now have the arrival day, so we see
- ;; whether it's old enough to be expired.
- ((< fetch-date day)
- 'expired)
- (force
- 'forced)))
-
- ;; I found some reason to expire this entry.
-
- (let ((actions nil))
- (when (memq type '(forced expired))
- (ignore-errors ; Just being paranoid.
- (delete-file (concat dir (number-to-string article-number)))
- (push "expired cached article" actions))
- (setf (nth 1 entry) nil)
- )
-
- (when marker
- (push "NOV entry removed" actions)
- (goto-char marker)
- (gnus-delete-line))
-
- ;; If considering all articles is set, I can only expire article IDs that are no longer in the active range.
- (if (and gnus-agent-consider-all-articles
- (>= article-number (car active)))
- ;; I have to keep this ID in the alist
- (gnus-agent-append-to-list tail-alist (cons article-number fetch-date))
- (push (format "Removed %s article number from article alist" type) actions))
-
- (gnus-message 7 "gnus-agent-expire: Article %d: %s" article-number (mapconcat 'identity actions ", "))))
- (t
- (gnus-agent-append-to-list tail-alist (cons article-number fetch-date)))
- )
-
- ;; Clean up markers as I want to recycle this buffer over several groups.
- (when marker
- (set-marker marker nil))
-
- (setq dlist (cdr dlist))))
-
- (setq alist (cdr alist))
-
- (let ((inhibit-quit t))
- (unless (equal alist gnus-agent-article-alist)
- (setq gnus-agent-article-alist alist)
- (gnus-agent-save-alist expiring-group))
-
- (when (buffer-modified-p)
- (let ((coding-system-for-write
- gnus-agent-file-coding-system))
- (gnus-make-directory dir)
- (write-region (point-min) (point-max) nov-file nil 'silent)
- ;; clear the modified flag as that I'm not confused by its status on the next pass through this routine.
- (set-buffer-modified-p nil)))
-
- (when (eq articles t)
- (gnus-summary-update-info)))))))))))
- (kill-buffer overview)))))
- (gnus-message 4 "Expiry...done"))
+ (if (and (not gnus-agent-expire-days)
+ (or (not (eq articles t))
+ (yes-or-no-p (concat "Are you sure that you want to expire all "
+ "articles in " (if group group
+ "every agentized group")
+ "."))))
+ (gnus-agent-expire-1 articles group force)
+ (gnus-message 4 "Expiry...done")))
;;;###autoload
(defun gnus-agent-batch ()
(cdr unread)))
(defun gnus-agent-uncached-articles (articles group &optional cached-header)
- "Constructs sublist of ARTICLES that excludes those articles ids in GROUP that have already been fetched.
- If CACHED-HEADER is nil, articles are only excluded if the article itself has been fetched."
+ "Restrict ARTICLES to numbers already fetched.
+Returns a sublist of ARTICLES that excludes thos article ids in GROUP
+that have already been fetched.
+If CACHED-HEADER is nil, articles are only excluded if the article itself
+has been fetched."
+
+ ;; Logically equivalent to: (gnus-sorted-difference articles (mapcar
+ ;; 'car gnus-agent-article-alist))
-;; Logically equivalent to: (gnus-sorted-difference articles (mapcar 'car gnus-agent-article-alist))
-;; Functionally, I don't need to construct a temp list using mapcar.
+ ;; Functionally, I don't need to construct a temp list using mapcar.
(if (gnus-agent-load-alist group)
(let* ((ref gnus-agent-article-alist)
uncached-articles group fetch-old)))
(nnvirtual-convert-headers))
((eq 'nntp (car gnus-current-select-method))
- ;; The author of gnus-get-newsgroup-headers-xover reports that the XOVER command
- ;; is commonly unreliable. The problem is that recently posted articles may not
- ;; be entered into the NOV database in time to respond to my XOVER query.
+ ;; The author of gnus-get-newsgroup-headers-xover
+ ;; reports that the XOVER command is commonly
+ ;; unreliable. The problem is that recently
+ ;; posted articles may not be entered into the
+ ;; NOV database in time to respond to my XOVER
+ ;; query.
;;
- ;; I'm going to use his assumption that the NOV database is updated in order
- ;; of ascending article ID. Therefore, a response containing article ID N
- ;; implies that all articles from 1 to N-1 are up-to-date. Therefore,
- ;; missing articles in that range have expired.
+ ;; I'm going to use his assumption that the NOV
+ ;; database is updated in order of ascending
+ ;; article ID. Therefore, a response containing
+ ;; article ID N implies that all articles from 1
+ ;; to N-1 are up-to-date. Therefore, missing
+ ;; articles in that range have expired.
(set-buffer nntp-server-buffer)
(let* ((fetched-articles (list nil))
(gnus-agent-append-to-list tail-fetched-articles (read (current-buffer))))
(forward-line 1)))
- ;; Clip this list to the headers that will actually be returned
+ ;; Clip this list to the headers that will
+ ;; actually be returned
(setq fetched-articles (gnus-list-range-intersection
(cdr fetched-articles)
(cons min max)))
- ;; Clip the uncached articles list to exclude IDs after the last FETCHED header.
- ;; The excluded IDs may be fetchable using HEAD.
+ ;; Clip the uncached articles list to exclude
+ ;; IDs after the last FETCHED header. The
+ ;; excluded IDs may be fetchable using HEAD.
(if (car tail-fetched-articles)
(setq uncached-articles (gnus-list-range-intersection
uncached-articles
(cons (car uncached-articles) (car tail-fetched-articles)))))
- ;; Create the list of articles that were "successfully" fetched. Success, in
- ;; this case, means that the ID should not be fetched again. In the case of
- ;; an expired article, the header will not be fetched.
+ ;; Create the list of articles that were
+ ;; "successfully" fetched. Success, in this
+ ;; case, means that the ID should not be
+ ;; fetched again. In the case of an expired
+ ;; article, the header will not be fetched.
(setq uncached-articles (gnus-sorted-nunion fetched-articles uncached-articles))
))))
(set-buffer nntp-server-buffer)
(copy-to-buffer gnus-agent-overview-buffer (point-min) (point-max))
- ;; Merge the temp buffer with the known headers (found on disk in FILE) into the nntp-server-buffer
+ ;; Merge the temp buffer with the known headers (found on
+ ;; disk in FILE) into the nntp-server-buffer
(when (and uncached-articles (file-exists-p file))
(gnus-agent-braid-nov group uncached-articles file))
(gnus-agent-check-overview-buffer)
(write-region (point-min) (point-max) file nil 'silent))
- ;; Update the group's article alist to include the newly fetched articles.
+ ;; Update the group's article alist to include the newly
+ ;; fetched articles.
(gnus-agent-load-alist group)
(gnus-agent-save-alist group uncached-articles nil)
)
t)))
(defun gnus-agent-regenerate-group (group &optional reread)
- "Regenerate GROUP. If REREAD is t, all articles in the .overview are marked as unread. If REREAD is not nil, downloaded articles are marked as unread."
+ "Regenerate GROUP.
+If REREAD is t, all articles in the .overview are marked as unread.
+If REREAD is not nil, downloaded articles are marked as unread."
(interactive (list (let ((def (or (gnus-group-group-name)
gnus-newsgroup-name)))
(let ((select (read-string (if def (concat "Group Name (" def "): ")
(nnheader-insert-file-contents file)))
(set-buffer-modified-p nil)
- ;; Load the article IDs found in the overview file. As a side-effect, validate the file contents.
+ ;; Load the article IDs found in the overview file. As a
+ ;; side-effect, validate the file contents.
(let ((load t))
(while load
(setq load nil)
nil)
((< l1 l2)
(gnus-message 3 "gnus-agent-regenerate-group: NOV entries are NOT in ascending order.")
- ;; Don't sort now as I haven't verified that every line begins with a number
+ ;; Don't sort now as I haven't verified
+ ;; that every line begins with a number
(setq load t))
((= l1 l2)
(forward-line -1)
(setq nov-arts nil)))))
(gnus-agent-check-overview-buffer)
- ;; Construct a new article alist whose nodes match every header in the .overview file.
- ;; As a side-effect, missing headers are reconstructed from the downloaded article file.
+ ;; Construct a new article alist whose nodes match every header
+ ;; in the .overview file. As a side-effect, missing headers are
+ ;; reconstructed from the downloaded article file.
(while (or downloaded nov-arts)
(cond ((and downloaded
(or (not nov-arts)
(push (cons (car nov-arts) nil) alist)
(pop nov-arts))))
- ;; When gnus-agent-consider-all-articles is set, gnus-agent-regenerate-group should NOT remove article IDs
- ;; from the alist. Those IDs serve as markers to indicate that an attempt has been made to fetch that
- ;; article's header.
-
- ;; When gnus-agent-consider-all-articles is NOT set, gnus-agent-regenerate-group can remove the article
- ;; ID of every article (with the exception of the last ID in the list - it's special) that no longer appears in the overview.
- ;; In this situtation, the last article ID in the list implies that it, and every article ID preceeding it,
- ;; have been fetched from the server.
+ ;; When gnus-agent-consider-all-articles is set,
+ ;; gnus-agent-regenerate-group should NOT remove article IDs from
+ ;; the alist. Those IDs serve as markers to indicate that an
+ ;; attempt has been made to fetch that article's header.
+
+ ;; When gnus-agent-consider-all-articles is NOT set,
+ ;; gnus-agent-regenerate-group can remove the article ID of every
+ ;; article (with the exception of the last ID in the list - it's
+ ;; special) that no longer appears in the overview. In this
+ ;; situtation, the last article ID in the list implies that it,
+ ;; and every article ID preceeding it, have been fetched from the
+ ;; server.
(if gnus-agent-consider-all-articles
;; Restore all article IDs that were not found in the overview file.
(let* ((n (cons nil alist))
projects / elisp / gnus.git- / blobdiff