X-Git-Url: http://cgit.sxemacs.org/?a=blobdiff_plain;f=lisp%2Fnnfolder.el;h=52d11e2e1b6852dcbc01dd684879f674edbc5853;hb=59409510d1e17b4f41d10861516412f6546366b3;hp=c12a8750574721e85029cd5727b089121eba44f9;hpb=2314ec9f9b7a9bc921f1ea6b13e55371f4622cb1;p=gnus diff --git a/lisp/nnfolder.el b/lisp/nnfolder.el index c12a87505..52d11e2e1 100644 --- a/lisp/nnfolder.el +++ b/lisp/nnfolder.el @@ -1,8 +1,10 @@ ;;; nnfolder.el --- mail folder access for Gnus -;; Copyright (C) 1995,96,97 Free Software Foundation, Inc. +;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000 +;; Free Software Foundation, Inc. -;; Author: Scott Byer -;; Lars Magne Ingebrigtsen +;; Author: ShengHuo Zhu (adding NOV) +;; Scott Byer +;; Lars Magne Ingebrigtsen ;; Masanobu UMEDA ;; Keywords: mail @@ -31,53 +33,76 @@ (require 'message) (require 'nnmail) (require 'nnoo) -(require 'cl) +(eval-when-compile (require 'cl)) (require 'gnus-util) +(require 'gnus-range) + +(eval-and-compile + (autoload 'gnus-intersection "gnus-range")) (nnoo-declare nnfolder) (defvoo nnfolder-directory (expand-file-name message-directory) - "The name of the nnfolder directory.") + "The name of the nnfolder directory. + +This variable is a virtual server slot. See the Gnus manual for details.") + +(defvoo nnfolder-nov-directory nil + "The name of the nnfolder NOV directory. +If nil, `nnfolder-directory' is used.") (defvoo nnfolder-active-file - (nnheader-concat nnfolder-directory "active") - "The name of the active file.") + (nnheader-concat nnfolder-directory "active") + "The name of the active file. + +This variable is a virtual server slot. See the Gnus manual for details.") ;; I renamed this variable to something more in keeping with the general GNU ;; style. -SLB (defvoo nnfolder-ignore-active-file nil - "If non-nil, causes nnfolder to do some extra work in order to determine -the true active ranges of an mbox file. Note that the active file is still -saved, but it's values are not used. This costs some extra time when -scanning an mbox when opening it.") + "If non-nil, the active file is ignored. +This causes nnfolder to do some extra work in order to determine the +true active ranges of an mbox file. Note that the active file is +still saved, but its values are not used. This costs some extra time +when scanning an mbox when opening it.") (defvoo nnfolder-distrust-mbox nil - "If non-nil, causes nnfolder to not trust the user with respect to -inserting unaccounted for mail in the middle of an mbox file. This can greatly -slow down scans, which now must scan the entire file for unmarked messages. -When nil, scans occur forward from the last marked message, a huge -time saver for large mailboxes.") + "If non-nil, the folder will be distrusted. +This means that nnfolder will not trust the user with respect to +inserting unaccounted for mail in the middle of an mbox file. This +can greatly slow down scans, which now must scan the entire file for +unmarked messages. When nil, scans occur forward from the last marked +message, a huge time saver for large mailboxes.") (defvoo nnfolder-newsgroups-file - (concat (file-name-as-directory nnfolder-directory) "newsgroups") - "Mail newsgroups description file.") + (concat (file-name-as-directory nnfolder-directory) "newsgroups") + "Mail newsgroups description file. + +This variable is a virtual server slot. See the Gnus manual for details.") (defvoo nnfolder-get-new-mail t - "If non-nil, nnfolder will check the incoming mail file and split the mail.") + "If non-nil, nnfolder will check the incoming mail file and split the mail. + +This variable is a virtual server slot. See the Gnus manual for details.") (defvoo nnfolder-prepare-save-mail-hook nil "Hook run narrowed to an article before saving.") (defvoo nnfolder-save-buffer-hook nil - "Hook run before saving the nnfolder mbox buffer.") + "Hook run before saving the nnfolder mbox buffer. + +This variable is a virtual server slot. See the Gnus manual for details.") + (defvoo nnfolder-inhibit-expiry nil - "If non-nil, inhibit expiry.") + "If non-nil, inhibit expiry. + +This variable is a virtual server slot. See the Gnus manual for details.") -(defconst nnfolder-version "nnfolder 1.0" +(defconst nnfolder-version "nnfolder 2.0" "nnfolder version.") (defconst nnfolder-article-marker "X-Gnus-Article-Number: " @@ -90,6 +115,30 @@ time saver for large mailboxes.") (defvoo nnfolder-buffer-alist nil) (defvoo nnfolder-scantime-alist nil) (defvoo nnfolder-active-timestamp nil) +(defvoo nnfolder-active-file-coding-system mm-text-coding-system) +(defvoo nnfolder-active-file-coding-system-for-write + nnmail-active-file-coding-system) +(defvoo nnfolder-file-coding-system mm-text-coding-system) +(defvoo nnfolder-file-coding-system-for-write nnheader-file-coding-system + "Coding system for save nnfolder file. +If NIL, NNFOLDER-FILE-CODING-SYSTEM is used.") + +(defvoo nnfolder-nov-is-evil nil + "If non-nil, Gnus will never generate and use nov databases for mail groups. +Using nov databases will speed up header fetching considerably. +This variable shouldn't be flipped much. If you have, for some reason, +set this to t, and want to set it to nil again, you should always run +the `nnfolder-generate-active-file' command. The function will go +through all nnfolder directories and generate nov databases for them +all. This may very well take some time. + +This variable is a virtual server slot. See the Gnus manual for details.") + +(defvoo nnfolder-nov-file-suffix ".nov") + +(defvoo nnfolder-nov-buffer-alist nil) + +(defvar nnfolder-nov-buffer-file-name nil) @@ -101,42 +150,42 @@ time saver for large mailboxes.") (save-excursion (set-buffer nntp-server-buffer) (erase-buffer) - (let (article art-string start stop) + (let (article start stop) (nnfolder-possibly-change-group group server) (when nnfolder-current-buffer (set-buffer nnfolder-current-buffer) (goto-char (point-min)) (if (stringp (car articles)) 'headers - (while articles - (setq article (car articles)) - (setq art-string (nnfolder-article-string article)) - (set-buffer nnfolder-current-buffer) - (when (or (search-forward art-string nil t) - ;; Don't search the whole file twice! Also, articles - ;; probably have some locality by number, so searching - ;; backwards will be faster. Especially if we're at the - ;; beginning of the buffer :-). -SLB - (search-backward art-string nil t)) - (nnmail-search-unix-mail-delim-backward) - (setq start (point)) - (search-forward "\n\n" nil t) - (setq stop (1- (point))) - (set-buffer nntp-server-buffer) - (insert (format "221 %d Article retrieved.\n" article)) - (insert-buffer-substring nnfolder-current-buffer start stop) - (goto-char (point-max)) - (insert ".\n")) - (setq articles (cdr articles))) - - (set-buffer nntp-server-buffer) - (nnheader-fold-continuation-lines) - 'headers))))) + (if (nnfolder-retrieve-headers-with-nov articles fetch-old) + 'nov + (setq articles (gnus-sorted-intersection + ;; Is ARTICLES sorted? + (sort articles '<) + (nnfolder-existing-articles))) + (while (setq article (pop articles)) + (set-buffer nnfolder-current-buffer) + (when (nnfolder-goto-article article) + (setq start (point)) + (setq stop (if (search-forward "\n\n" nil t) + (1- (point)) + (point-max))) + (set-buffer nntp-server-buffer) + (insert (format "221 %d Article retrieved.\n" article)) + (insert-buffer-substring nnfolder-current-buffer start stop) + (goto-char (point-max)) + (insert ".\n"))) + (set-buffer nntp-server-buffer) + (nnheader-fold-continuation-lines) + 'headers)))))) (deffoo nnfolder-open-server (server &optional defs) (nnoo-change-server 'nnfolder server defs) (nnmail-activate 'nnfolder t) (gnus-make-directory nnfolder-directory) + (unless (or gnus-nov-is-evil nnfolder-nov-is-evil) + (and nnfolder-nov-directory + (gnus-make-directory nnfolder-nov-directory))) (cond ((not (file-exists-p nnfolder-directory)) (nnfolder-close-server) @@ -165,9 +214,8 @@ time saver for large mailboxes.") (save-excursion (set-buffer nnfolder-current-buffer) (goto-char (point-min)) - (when (search-forward (nnfolder-article-string article) nil t) + (when (nnfolder-goto-article article) (let (start stop) - (nnmail-search-unix-mail-delim-backward) (setq start (point)) (forward-line 1) (unless (and (nnmail-search-unix-mail-delim) @@ -186,11 +234,13 @@ time saver for large mailboxes.") (if (numberp article) (cons nnfolder-current-group article) (goto-char (point-min)) - (search-forward (concat "\n" nnfolder-article-marker)) (cons nnfolder-current-group - (string-to-int - (buffer-substring - (point) (progn (end-of-line) (point))))))))))) + (if (search-forward (concat "\n" nnfolder-article-marker) + nil t) + (string-to-int + (buffer-substring + (point) (progn (end-of-line) (point)))) + -1)))))))) (deffoo nnfolder-request-group (group &optional server dont-check) (nnfolder-possibly-change-group group server t) @@ -225,7 +275,7 @@ time saver for large mailboxes.") (let ((bufs nnfolder-buffer-alist)) (save-excursion (while bufs - (if (not (buffer-live-p (nth 1 (car bufs)))) + (if (not (gnus-buffer-live-p (nth 1 (car bufs)))) (setq nnfolder-buffer-alist (delq (car bufs) nnfolder-buffer-alist)) (set-buffer (nth 1 (car bufs))) @@ -276,14 +326,16 @@ time saver for large mailboxes.") (when group (unless (assoc group nnfolder-group-alist) (push (list group (cons 1 0)) nnfolder-group-alist) - (nnmail-save-active nnfolder-group-alist nnfolder-active-file))) + (nnfolder-save-active nnfolder-group-alist nnfolder-active-file) + (nnfolder-read-folder group))) t) (deffoo nnfolder-request-list (&optional server) (nnfolder-possibly-change-group nil server) (save-excursion - (nnmail-find-file nnfolder-active-file) - (setq nnfolder-group-alist (nnmail-get-active)) + (let ((nnmail-file-coding-system nnfolder-active-file-coding-system)) + (nnmail-find-file nnfolder-active-file) + (setq nnfolder-group-alist (nnmail-get-active))) t)) (deffoo nnfolder-request-newgroups (date &optional server) @@ -293,116 +345,187 @@ time saver for large mailboxes.") (deffoo nnfolder-request-list-newsgroups (&optional server) (nnfolder-possibly-change-group nil server) (save-excursion - (nnmail-find-file nnfolder-newsgroups-file))) + (let ((nnmail-file-coding-system nnfolder-file-coding-system)) + (nnmail-find-file nnfolder-newsgroups-file)))) + +;; Return a list consisting of all article numbers existing in the +;; current folder. + +(defun nnfolder-existing-articles () + (save-excursion + (when nnfolder-current-buffer + (set-buffer nnfolder-current-buffer) + (goto-char (point-min)) + (let ((marker (concat "\n" nnfolder-article-marker)) + (number "[0-9]+") + numbers) + (while (and (search-forward marker nil t) + (re-search-forward number nil t)) + (let ((newnum (string-to-number (match-string 0)))) + (if (nnmail-within-headers-p) + (push newnum numbers)))) + ;; The article numbers are increasing, so this result is sorted. + (nreverse numbers))))) (deffoo nnfolder-request-expire-articles - (articles newsgroup &optional server force) + (articles newsgroup &optional server force) (nnfolder-possibly-change-group newsgroup server) (let* ((is-old t) - rest) + ;; The articles we have deleted so far. + (deleted-articles nil) + ;; The articles that really exist and will + ;; be expired if they are old enough. + (maybe-expirable + (gnus-sorted-intersection articles (nnfolder-existing-articles)))) (nnmail-activate 'nnfolder) (save-excursion (set-buffer nnfolder-current-buffer) - (while (and articles is-old) + ;; Since messages are sorted in arrival order and expired in the + ;; same order, we can stop as soon as we find a message that is + ;; too old. + (while (and maybe-expirable is-old) (goto-char (point-min)) - (when (search-forward (nnfolder-article-string (car articles)) nil t) - (if (setq is-old - (nnmail-expired-article-p - newsgroup - (buffer-substring - (point) (progn (end-of-line) (point))) - force nnfolder-inhibit-expiry)) - (progn - (nnheader-message 5 "Deleting article %d..." - (car articles) newsgroup) - (nnfolder-delete-mail)) - (push (car articles) rest))) - (setq articles (cdr articles))) + (when (and (nnfolder-goto-article (car maybe-expirable)) + (search-forward (concat "\n" nnfolder-article-marker) + nil t)) + (forward-sexp) + (when (setq is-old + (nnmail-expired-article-p + newsgroup + (buffer-substring + (point) (progn (end-of-line) (point))) + force nnfolder-inhibit-expiry)) + (unless (eq nnmail-expiry-target 'delete) + (with-temp-buffer + (nnfolder-request-article (car maybe-expirable) + newsgroup server (current-buffer)) + (let ((nnml-current-directory nil)) + (nnmail-expiry-target-group + nnmail-expiry-target newsgroup)))) + (nnheader-message 5 "Deleting article %d in %s..." + (car maybe-expirable) newsgroup) + (nnfolder-delete-mail) + (unless (or gnus-nov-is-evil nnfolder-nov-is-evil) + (nnfolder-nov-delete-article newsgroup (car maybe-expirable))) + ;; Must remember which articles were actually deleted + (push (car maybe-expirable) deleted-articles))) + (setq maybe-expirable (cdr maybe-expirable))) (unless nnfolder-inhibit-expiry (nnheader-message 5 "Deleting articles...done")) (nnfolder-save-buffer) (nnfolder-adjust-min-active newsgroup) - (nnmail-save-active nnfolder-group-alist nnfolder-active-file) - (nconc rest articles)))) - -(deffoo nnfolder-request-move-article - (article group server accept-form &optional last) - (let ((buf (get-buffer-create " *nnfolder move*")) - result) - (and - (nnfolder-request-article article group server) - (save-excursion - (set-buffer buf) - (buffer-disable-undo (current-buffer)) - (erase-buffer) - (insert-buffer-substring nntp-server-buffer) - (goto-char (point-min)) - (while (re-search-forward - (concat "^" nnfolder-article-marker) - (save-excursion (search-forward "\n\n" nil t) (point)) t) - (delete-region (progn (beginning-of-line) (point)) - (progn (forward-line 1) (point)))) - (setq result (eval accept-form)) - (kill-buffer buf) - result) - (save-excursion - (nnfolder-possibly-change-group group server) - (set-buffer nnfolder-current-buffer) - (goto-char (point-min)) - (when (search-forward (nnfolder-article-string article) nil t) - (nnfolder-delete-mail)) - (when last - (nnfolder-save-buffer) - (nnfolder-adjust-min-active group) - (nnmail-save-active nnfolder-group-alist nnfolder-active-file)))) - result)) + (nnfolder-save-active nnfolder-group-alist nnfolder-active-file) + (gnus-sorted-complement articles (nreverse deleted-articles))))) -(deffoo nnfolder-request-accept-article (group &optional server last) - (nnfolder-possibly-change-group group server) - (nnmail-check-syntax) - (let ((buf (current-buffer)) - result art-group) - (goto-char (point-min)) - (when (looking-at "X-From-Line: ") - (replace-match "From ")) - (and - (nnfolder-request-list) - (save-excursion - (set-buffer buf) - (goto-char (point-min)) - (search-forward "\n\n" nil t) - (forward-line -1) - (while (re-search-backward (concat "^" nnfolder-article-marker) nil t) - (delete-region (point) (progn (forward-line 1) (point)))) - (when nnmail-cache-accepted-message-ids - (nnmail-cache-insert (nnmail-fetch-field "message-id"))) - (setq result - (car (nnfolder-save-mail - (if (stringp group) - (list (cons group (nnfolder-active-number group))) - (setq art-group - (nnmail-article-group 'nnfolder-active-number))))))) - (when last +(deffoo nnfolder-request-move-article (article group server + accept-form &optional last) + (save-excursion + (let ((buf (get-buffer-create " *nnfolder move*")) + result) + (and + (nnfolder-request-article article group server) + (save-excursion + (set-buffer buf) + (erase-buffer) + (insert-buffer-substring nntp-server-buffer) + (goto-char (point-min)) + (while (re-search-forward + (concat "^" nnfolder-article-marker) + (save-excursion (and (search-forward "\n\n" nil t) (point))) + t) + (delete-region (progn (beginning-of-line) (point)) + (progn (forward-line 1) (point)))) + (setq result (eval accept-form)) + (kill-buffer buf) + result) (save-excursion - (nnfolder-possibly-change-folder (or (caar art-group) group)) - (nnfolder-save-buffer) - (when nnmail-cache-accepted-message-ids - (nnmail-cache-close))))) - (nnmail-save-active nnfolder-group-alist nnfolder-active-file) - (unless result - (nnheader-report 'nnfolder "Couldn't store article")) - result)) + (nnfolder-possibly-change-group group server) + (set-buffer nnfolder-current-buffer) + (goto-char (point-min)) + (when (nnfolder-goto-article article) + (nnfolder-delete-mail)) + (unless (or gnus-nov-is-evil nnfolder-nov-is-evil) + (nnfolder-nov-delete-article group article)) + (when last + (nnfolder-save-buffer) + (nnfolder-adjust-min-active group) + (nnfolder-save-active nnfolder-group-alist nnfolder-active-file)))) + result))) + +(deffoo nnfolder-request-accept-article (group &optional server last) + (save-excursion + (nnfolder-possibly-change-group group server) + (nnmail-check-syntax) + (let ((buf (current-buffer)) + result art-group) + (goto-char (point-min)) + (when (looking-at "X-From-Line: ") + (replace-match "From ")) + (with-temp-buffer + (let ((nnmail-file-coding-system nnfolder-active-file-coding-system) + (nntp-server-buffer (current-buffer))) + (nnmail-find-file nnfolder-active-file) + (setq nnfolder-group-alist (nnmail-parse-active)))) + (save-excursion + (goto-char (point-min)) + (if (search-forward "\n\n" nil t) + (forward-line -1) + (goto-char (point-max))) + (while (re-search-backward (concat "^" nnfolder-article-marker) nil t) + (delete-region (point) (progn (forward-line 1) (point)))) + (when nnmail-cache-accepted-message-ids + (nnmail-cache-insert (nnmail-fetch-field "message-id"))) + (setq result (if (stringp group) + (list (cons group (nnfolder-active-number group))) + (setq art-group + (nnmail-article-group 'nnfolder-active-number)))) + (if (and (null result) + (yes-or-no-p "Moved to `junk' group; delete article? ")) + (setq result 'junk) + (setq result + (car (nnfolder-save-mail result))))) + (when last + (save-excursion + (nnfolder-possibly-change-folder (or (caar art-group) group)) + (nnfolder-save-buffer) + (when nnmail-cache-accepted-message-ids + (nnmail-cache-close)))) + (nnfolder-save-active nnfolder-group-alist nnfolder-active-file) + (unless result + (nnheader-report 'nnfolder "Couldn't store article")) + result))) (deffoo nnfolder-request-replace-article (article group buffer) (nnfolder-possibly-change-group group) (save-excursion + (set-buffer buffer) + (goto-char (point-min)) + (let (xfrom) + (while (re-search-forward "^X-From-Line: \\(.*\\)$" nil t) + (setq xfrom (match-string 1)) + (gnus-delete-line)) + (goto-char (point-min)) + (if xfrom + (insert "From " xfrom "\n") + (unless (looking-at "From ") + (insert "From nobody " (current-time-string) "\n")))) + (nnfolder-normalize-buffer) (set-buffer nnfolder-current-buffer) (goto-char (point-min)) - (if (not (search-forward (nnfolder-article-string article) nil t)) + (if (not (nnfolder-goto-article article)) nil - (nnfolder-delete-mail t t) + (nnfolder-delete-mail) (insert-buffer-substring buffer) + (unless (or gnus-nov-is-evil nnfolder-nov-is-evil) + (save-excursion + (set-buffer buffer) + (let ((headers (nnfolder-parse-head article + (point-min) (point-max)))) + (with-current-buffer (nnfolder-open-nov group) + (if (nnheader-find-nov-line article) + (delete-region (point) (progn (forward-line 1) (point)))) + (nnheader-insert-nov headers))))) (nnfolder-save-buffer) t))) @@ -413,14 +536,15 @@ time saver for large mailboxes.") () ; Don't delete the articles. ;; Delete the file that holds the group. (ignore-errors - (delete-file (nnfolder-group-pathname group)))) + (delete-file (nnfolder-group-pathname group)) + (delete-file (nnfolder-group-nov-pathname group)))) ;; Remove the group from all structures. (setq nnfolder-group-alist (delq (assoc group nnfolder-group-alist) nnfolder-group-alist) nnfolder-current-group nil nnfolder-current-buffer nil) ;; Save the active file. - (nnmail-save-active nnfolder-group-alist nnfolder-active-file) + (nnfolder-save-active nnfolder-group-alist nnfolder-active-file) t) (deffoo nnfolder-request-rename-group (group new-name &optional server) @@ -429,9 +553,12 @@ time saver for large mailboxes.") (set-buffer nnfolder-current-buffer) (and (file-writable-p buffer-file-name) (ignore-errors - (rename-file - buffer-file-name - (nnfolder-group-pathname new-name)) + (let ((new-file (nnfolder-group-pathname new-name))) + (gnus-make-directory (file-name-directory new-file)) + (rename-file buffer-file-name new-file) + (setq new-file (nnfolder-group-nov-pathname new-name)) + (rename-file (nnfolder-group-nov-pathname group) + new-file)) t) ;; That went ok, so we change the internal structures. (let ((entry (assoc group nnfolder-group-alist))) @@ -439,11 +566,16 @@ time saver for large mailboxes.") (setq nnfolder-current-buffer nil nnfolder-current-group nil) ;; Save the new group alist. - (nnmail-save-active nnfolder-group-alist nnfolder-active-file) + (nnfolder-save-active nnfolder-group-alist nnfolder-active-file) ;; We kill the buffer instead of renaming it and stuff. (kill-buffer (current-buffer)) t)))) +(deffoo nnfolder-request-regenerate (server) + (nnfolder-possibly-change-group nil server) + (nnfolder-generate-active-file) + t) + ;;; Internal functions. @@ -458,10 +590,9 @@ time saver for large mailboxes.") (goto-char (point-min)) (while (and (search-forward marker nil t) (re-search-forward number nil t)) - (setq activemin (min activemin - (string-to-number (buffer-substring - (match-beginning 0) - (match-end 0)))))) + (let ((newnum (string-to-number (match-string 0)))) + (if (nnmail-within-headers-p) + (setq activemin (min activemin newnum))))) (setcar active activemin)))) (defun nnfolder-article-string (article) @@ -469,21 +600,49 @@ time saver for large mailboxes.") (concat "\n" nnfolder-article-marker (int-to-string article) " ") (concat "\nMessage-ID: " article))) -(defun nnfolder-delete-mail (&optional force leave-delim) - "Delete the message that point is in." - (save-excursion - (delete-region +(defun nnfolder-goto-article (article) + "Place point at the start of the headers of ARTICLE. +ARTICLE can be an article number or a Message-ID. +Returns t if successful, nil otherwise." + (let ((art-string (nnfolder-article-string article)) + start found) + ;; It is likely that we are at or before the delimiter line. + ;; We therefore go to the end of the previous line, and start + ;; searching from there. + (beginning-of-line) + (unless (bobp) + (forward-char -1)) + (setq start (point)) + ;; First search forward. + (while (and (setq found (search-forward art-string nil t)) + (not (nnmail-within-headers-p)))) + ;; If unsuccessful, search backward from where we started, + (unless found + (goto-char start) + (while (and (setq found (search-backward art-string nil t)) + (not (nnmail-within-headers-p))))) + (when found + (nnmail-search-unix-mail-delim-backward)))) + +(defun nnfolder-delete-mail (&optional leave-delim) + "Delete the message that point is in. +If optional argument LEAVE-DELIM is t, then mailbox delimiter is not +deleted. Point is left where the deleted region was." + (save-restriction + (narrow-to-region (save-excursion + ;; In case point is at the beginning of the message already. + (forward-line 1) (nnmail-search-unix-mail-delim-backward) (if leave-delim (progn (forward-line 1) (point)) (point))) (progn (forward-line 1) (if (nnmail-search-unix-mail-delim) - (if (and (not (bobp)) leave-delim) - (progn (forward-line -2) (point)) - (point)) - (point-max)))))) + (point) + (point-max)))) + (run-hooks 'nnfolder-delete-mail-hook) + (delete-region (point-min) (point-max)))) (defun nnfolder-possibly-change-group (group &optional server dont-check) ;; Change servers. @@ -494,57 +653,59 @@ time saver for large mailboxes.") (setq nnfolder-current-buffer nil nnfolder-current-group nil)) ;; Change group. - (when (and group - (not (equal group nnfolder-current-group))) - (nnmail-activate 'nnfolder) - (when (and (not (assoc group nnfolder-group-alist)) - (not (file-exists-p - (nnfolder-group-pathname group)))) - ;; The group doesn't exist, so we create a new entry for it. - (push (list group (cons 1 0)) nnfolder-group-alist) - (nnmail-save-active nnfolder-group-alist nnfolder-active-file)) - - (if dont-check - (setq nnfolder-current-group group) - (let (inf file) - ;; If we have to change groups, see if we don't already have the - ;; folder in memory. If we do, verify the modtime and destroy - ;; the folder if needed so we can rescan it. - (when (setq inf (assoc group nnfolder-buffer-alist)) - (setq nnfolder-current-buffer (nth 1 inf))) - - ;; If the buffer is not live, make sure it isn't in the alist. If it - ;; is live, verify that nobody else has touched the file since last - ;; time. - (when (and nnfolder-current-buffer - (not (gnus-buffer-live-p nnfolder-current-buffer))) - (setq nnfolder-buffer-alist (delq inf nnfolder-buffer-alist) - nnfolder-current-buffer nil)) - - (setq nnfolder-current-group group) - - (when (or (not nnfolder-current-buffer) - (not (verify-visited-file-modtime nnfolder-current-buffer))) - (save-excursion - (setq file (nnfolder-group-pathname group)) - ;; See whether we need to create the new file. - (unless (file-exists-p file) - (gnus-make-directory (file-name-directory file)) - (nnmail-write-region 1 1 file t 'nomesg)) - (when (setq nnfolder-current-buffer (nnfolder-read-folder group)) - (set-buffer nnfolder-current-buffer) - (push (list group nnfolder-current-buffer) - nnfolder-buffer-alist)))))))) + (let ((file-name-coding-system nnmail-pathname-coding-system)) + (when (and group + (not (equal group nnfolder-current-group)) + (progn + (nnmail-activate 'nnfolder) + (and (assoc group nnfolder-group-alist) + (file-exists-p (nnfolder-group-pathname group))))) + (if dont-check + (setq nnfolder-current-group group + nnfolder-current-buffer nil) + (let (inf file) + ;; If we have to change groups, see if we don't already have + ;; the folder in memory. If we do, verify the modtime and + ;; destroy the folder if needed so we can rescan it. + (setq nnfolder-current-buffer + (nth 1 (assoc group nnfolder-buffer-alist))) + + ;; If the buffer is not live, make sure it isn't in the + ;; alist. If it is live, verify that nobody else has + ;; touched the file since last time. + (when (and nnfolder-current-buffer + (not (gnus-buffer-live-p nnfolder-current-buffer))) + (setq nnfolder-buffer-alist (delq inf nnfolder-buffer-alist) + nnfolder-current-buffer nil)) + + (setq nnfolder-current-group group) + + (when (or (not nnfolder-current-buffer) + (not (verify-visited-file-modtime + nnfolder-current-buffer))) + (save-excursion + (setq file (nnfolder-group-pathname group)) + ;; See whether we need to create the new file. + (unless (file-exists-p file) + (gnus-make-directory (file-name-directory file)) + (let ((nnmail-file-coding-system + (or nnfolder-file-coding-system-for-write + nnfolder-file-coding-system-for-write))) + (nnmail-write-region 1 1 file t 'nomesg))) + (when (setq nnfolder-current-buffer (nnfolder-read-folder group)) + (set-buffer nnfolder-current-buffer) + (push (list group nnfolder-current-buffer) + nnfolder-buffer-alist))))))))) (defun nnfolder-save-mail (group-art-list) "Called narrowed to an article." (let* (save-list group-art) (goto-char (point-min)) ;; The From line may have been quoted by movemail. - (when (looking-at (concat ">" message-unix-mail-delimiter)) + (when (looking-at ">From") (delete-char 1)) ;; This might come from somewhere else. - (unless (looking-at message-unix-mail-delimiter) + (unless (looking-at "From ") (insert "From nobody " (current-time-string) "\n") (goto-char (point-min))) ;; Quote all "From " lines in the article. @@ -563,8 +724,9 @@ time saver for large mailboxes.") (while (setq group-art (pop group-art-list)) ;; Kill any previous newsgroup markers. (goto-char (point-min)) - (search-forward "\n\n" nil t) - (forward-line -1) + (if (search-forward "\n\n" nil t) + (forward-line -1) + (goto-char (point-max))) (while (search-backward (concat "\n" nnfolder-article-marker) nil t) (delete-region (1+ (point)) (progn (forward-line 2) (point)))) @@ -576,23 +738,33 @@ time saver for large mailboxes.") (end (point-max)) (obuf (current-buffer))) (nnfolder-possibly-change-folder (car group-art)) - (goto-char (point-max)) - (unless (eolp) - (insert "\n")) - (unless (bobp) - (insert "\n")) - (insert-buffer-substring obuf beg end)))) + (let ((buffer-read-only nil)) + (nnfolder-normalize-buffer) + (insert-buffer-substring obuf beg end)) + (unless (or gnus-nov-is-evil nnfolder-nov-is-evil) + (set-buffer obuf) + (nnfolder-add-nov (car group-art) (cdr group-art) + (nnfolder-parse-head nil beg end)))))) ;; Did we save it anywhere? save-list)) +(defun nnfolder-normalize-buffer () + "Make sure there are two newlines at the end of the buffer." + (goto-char (point-max)) + (skip-chars-backward "\n") + (delete-region (point) (point-max)) + (insert "\n\n")) + (defun nnfolder-insert-newsgroup-line (group-art) (save-excursion (goto-char (point-min)) - (when (search-forward "\n\n" nil t) - (forward-char -1) - (insert (format (concat nnfolder-article-marker "%d %s\n") - (cdr group-art) (current-time-string)))))) + (unless (search-forward "\n\n" nil t) + (goto-char (point-max)) + (insert "\n")) + (forward-char -1) + (insert (format (concat nnfolder-article-marker "%d %s\n") + (cdr group-art) (current-time-string))))) (defun nnfolder-active-number (group) ;; Find the next article number in GROUP. @@ -614,37 +786,51 @@ time saver for large mailboxes.") (when inf (setq nnfolder-buffer-alist (delq inf nnfolder-buffer-alist))) (when nnfolder-group-alist - (nnmail-save-active nnfolder-group-alist nnfolder-active-file)) + (nnfolder-save-active nnfolder-group-alist nnfolder-active-file)) (push (list group (nnfolder-read-folder group)) nnfolder-buffer-alist)))) -;; This method has a problem if you've accidentally let the active list get -;; out of sync with the files. This could happen, say, if you've -;; accidentally gotten new mail with something other than Gnus (but why -;; would _that_ ever happen? :-). In that case, we will be in the middle of -;; processing the file, ready to add new X-Gnus article number markers, and -;; we'll run across a message with no ID yet - the active list _may_not_ be -;; ready for us yet. - -;; To handle this, I'm modifying this routine to maintain the maximum ID seen -;; so far, and when we hit a message with no ID, we will _manually_ scan the -;; rest of the message looking for any more, possibly higher IDs. We'll -;; assume the maximum that we find is the highest active. Note that this -;; shouldn't cost us much extra time at all, but will be a lot less -;; vulnerable to glitches between the mbox and the active file. +;; This method has a problem if you've accidentally let the active +;; list get out of sync with the files. This could happen, say, if +;; you've accidentally gotten new mail with something other than Gnus +;; (but why would _that_ ever happen? :-). In that case, we will be +;; in the middle of processing the file, ready to add new X-Gnus +;; article number markers, and we'll run across a message with no ID +;; yet - the active list _may_not_ be ready for us yet. + +;; To handle this, I'm modifying this routine to maintain the maximum +;; ID seen so far, and when we hit a message with no ID, we will +;; _manually_ scan the rest of the message looking for any more, +;; possibly higher IDs. We'll assume the maximum that we find is the +;; highest active. Note that this shouldn't cost us much extra time +;; at all, but will be a lot less vulnerable to glitches between the +;; mbox and the active file. (defun nnfolder-read-folder (group) (let* ((file (nnfolder-group-pathname group)) - (buffer (set-buffer (nnheader-find-file-noselect file)))) + (nov (nnfolder-group-nov-pathname group)) + (buffer (set-buffer + (let ((nnheader-file-coding-system + nnfolder-file-coding-system)) + (nnheader-find-file-noselect file))))) + (mm-enable-multibyte) ;; Use multibyte buffer for future copying. (if (equal (cadr (assoc group nnfolder-scantime-alist)) (nth 5 (file-attributes file))) ;; This looks up-to-date, so we don't do any scanning. - buffer + (if (file-exists-p file) + buffer + (push (list group buffer) nnfolder-buffer-alist) + (set-buffer-modified-p t) + (nnfolder-save-buffer)) ;; Parse the damn thing. (save-excursion + (goto-char (point-min)) + ;; Remove any blank lines at the start. + (while (eq (following-char) ?\n) + (delete-char 1)) (nnmail-activate 'nnfolder) ;; Read in the file. - (let ((delim (concat "^" message-unix-mail-delimiter)) + (let ((delim "^From ") (marker (concat "\n" nnfolder-article-marker)) (number "[0-9]+") (active (or (cadr (assoc group nnfolder-group-alist)) @@ -652,48 +838,81 @@ time saver for large mailboxes.") (scantime (assoc group nnfolder-scantime-alist)) (minid (lsh -1 -1)) maxid start end newscantime + novbuf articles newnum buffer-read-only) - (buffer-disable-undo (current-buffer)) + (buffer-disable-undo) (setq maxid (cdr active)) + + (unless (or gnus-nov-is-evil nnfolder-nov-is-evil + (and (file-exists-p nov) + (file-newer-than-file-p nov file))) + (unless (file-exists-p nov) + (gnus-make-directory (file-name-directory nov))) + (with-current-buffer + (setq novbuf (nnfolder-open-nov group)) + (goto-char (point-min)) + (while (not (eobp)) + (push (read novbuf) articles) + (forward-line 1)) + (setq articles (nreverse articles)))) (goto-char (point-min)) - ;; Anytime the active number is 1 or 0, it is suspect. In that - ;; case, search the file manually to find the active number. Or, - ;; of course, if we're being paranoid. (This would also be the - ;; place to build other lists from the header markers, such as - ;; expunge lists, etc., if we ever desired to abandon the active - ;; file entirely for mboxes.) + ;; Anytime the active number is 1 or 0, it is suspect. In + ;; that case, search the file manually to find the active + ;; number. Or, of course, if we're being paranoid. (This + ;; would also be the place to build other lists from the + ;; header markers, such as expunge lists, etc., if we ever + ;; desired to abandon the active file entirely for mboxes.) (when (or nnfolder-ignore-active-file + novbuf (< maxid 2)) (while (and (search-forward marker nil t) - (re-search-forward number nil t)) - (let ((newnum (string-to-number (match-string 0)))) - (setq maxid (max maxid newnum)) - (setq minid (min minid newnum)))) + (looking-at number)) + (setq newnum (string-to-number (match-string 0))) + (when (nnmail-within-headers-p) + (setq maxid (max maxid newnum) + minid (min minid newnum)) + (when novbuf + (if (memq newnum articles) + (setq articles (delq newnum articles)) + (let ((headers (nnfolder-parse-head newnum))) + (with-current-buffer novbuf + (nnheader-find-nov-line newnum) + (nnheader-insert-nov headers))))))) + (when (and novbuf articles) + (with-current-buffer novbuf + (dolist (article articles) + (when (nnheader-find-nov-line article) + (delete-region (point) + (progn (forward-line 1) (point))))))) (setcar active (max 1 (min minid maxid))) (setcdr active (max maxid (cdr active))) (goto-char (point-min))) - ;; As long as we trust that the user will only insert unmarked mail - ;; at the end, go to the end and search backwards for the last - ;; marker. Find the start of that message, and begin to search for - ;; unmarked messages from there. + ;; As long as we trust that the user will only insert + ;; unmarked mail at the end, go to the end and search + ;; backwards for the last marker. Find the start of that + ;; message, and begin to search for unmarked messages from + ;; there. (when (not (or nnfolder-distrust-mbox (< maxid 2))) (goto-char (point-max)) (unless (re-search-backward marker nil t) - (goto-char (point-min)))) - - ;; Keep track of the active number on our own, and insert it back - ;; into the active list when we're done. Also, prime the pump to - ;; cut down on the number of searches we do. + (goto-char (point-min))) + ;;(when (nnmail-search-unix-mail-delim) + ;; (goto-char (point-min))) + ) + + ;; Keep track of the active number on our own, and insert it + ;; back into the active list when we're done. Also, prime + ;; the pump to cut down on the number of searches we do. (unless (nnmail-search-unix-mail-delim) (goto-char (point-max))) (setq end (point-marker)) (while (not (= end (point-max))) (setq start (marker-position end)) (goto-char end) - ;; There may be more than one "From " line, so we skip past + ;; There may be more than one "From " line, so we skip past ;; them. (while (looking-at delim) (forward-line 1)) @@ -705,44 +924,72 @@ time saver for large mailboxes.") (narrow-to-region start end) (nnmail-insert-lines) (nnfolder-insert-newsgroup-line - (cons nil (nnfolder-active-number nnfolder-current-group))) + (cons nil + (setq newnum + (nnfolder-active-number nnfolder-current-group)))) + (when novbuf + (let ((headers (nnfolder-parse-head newnum (point-min) + (point-max)))) + (with-current-buffer novbuf + (goto-char (point-max)) + (nnheader-insert-nov headers)))) (widen))) (set-marker end nil) - ;; Make absolutely sure that the active list reflects reality! - (nnmail-save-active nnfolder-group-alist nnfolder-active-file) + ;; Make absolutely sure that the active list reflects + ;; reality! + (nnfolder-save-active nnfolder-group-alist nnfolder-active-file) + ;; Set the scantime for this group. (setq newscantime (visited-file-modtime)) (if scantime (setcdr scantime (list newscantime)) (push (list nnfolder-current-group newscantime) nnfolder-scantime-alist)) + ;; Save nov. + (when novbuf + (nnfolder-save-nov)) (current-buffer)))))) ;;;###autoload (defun nnfolder-generate-active-file () - "Look for mbox folders in the nnfolder directory and make them into groups." + "Look for mbox folders in the nnfolder directory and make them into groups. +This command does not work if you use short group names." (interactive) (nnmail-activate 'nnfolder) + (unless (or gnus-nov-is-evil nnfolder-nov-is-evil) + (dolist (file (directory-files (or nnfolder-nov-directory + nnfolder-directory) + t + (concat + (regexp-quote nnfolder-nov-file-suffix) + "$"))) + (when (not (message-mail-file-mbox-p file)) + (ignore-errors + (delete-file file))))) (let ((files (directory-files nnfolder-directory)) - file) + file) (while (setq file (pop files)) (when (and (not (backup-file-name-p file)) - (message-mail-file-mbox-p + (message-mail-file-mbox-p (nnheader-concat nnfolder-directory file))) - (let ((oldgroup (assoc file nnfolder-group-alist))) - (if oldgroup - (nnheader-message 5 "Refreshing group %s..." file) - (nnheader-message 5 "Adding group %s..." file)) - (setq nnfolder-group-alist (remove oldgroup nnfolder-group-alist)) - (push (list file (cons 1 0)) nnfolder-group-alist) - (nnfolder-possibly-change-folder file) - (nnfolder-possibly-change-group file) - (nnfolder-close-group file)))) - (message ""))) + (let ((oldgroup (assoc file nnfolder-group-alist))) + (if oldgroup + (nnheader-message 5 "Refreshing group %s..." file) + (nnheader-message 5 "Adding group %s..." file)) + (if oldgroup + (setq nnfolder-group-alist + (delq oldgroup (copy-sequence nnfolder-group-alist)))) + (push (list file (cons 1 0)) nnfolder-group-alist) + (nnfolder-possibly-change-folder file) + (nnfolder-possibly-change-group file) + (nnfolder-close-group file)))) + (nnheader-message 5 ""))) (defun nnfolder-group-pathname (group) "Make pathname for GROUP." + (setq group + (mm-encode-coding-string group nnmail-pathname-coding-system)) (let ((dir (file-name-as-directory (expand-file-name nnfolder-directory)))) ;; If this file exists, we use it directly. (if (or nnmail-use-long-file-names @@ -751,11 +998,117 @@ time saver for large mailboxes.") ;; If not, we translate dots into slashes. (concat dir (nnheader-replace-chars-in-string group ?. ?/))))) +(defun nnfolder-group-nov-pathname (group) + "Make pathname for GROUP NOV." + (let ((nnfolder-directory + (or nnfolder-nov-directory nnfolder-directory))) + (concat (nnfolder-group-pathname group) nnfolder-nov-file-suffix))) + (defun nnfolder-save-buffer () "Save the buffer." (when (buffer-modified-p) (run-hooks 'nnfolder-save-buffer-hook) - (save-buffer))) + (gnus-make-directory (file-name-directory (buffer-file-name))) + (let ((coding-system-for-write + (or nnfolder-file-coding-system-for-write + nnfolder-file-coding-system))) + (save-buffer))) + (unless (or gnus-nov-is-evil nnfolder-nov-is-evil) + (nnfolder-save-nov))) + +(defun nnfolder-save-active (group-alist active-file) + (let ((nnmail-active-file-coding-system + (or nnfolder-active-file-coding-system-for-write + nnfolder-active-file-coding-system))) + (nnmail-save-active group-alist active-file))) + +(defun nnfolder-open-nov (group) + (or (cdr (assoc group nnfolder-nov-buffer-alist)) + (let ((buffer (get-buffer-create (format " *nnfolder overview %s*" group)))) + (save-excursion + (set-buffer buffer) + (set (make-local-variable 'nnfolder-nov-buffer-file-name) + (nnfolder-group-nov-pathname group)) + (erase-buffer) + (when (file-exists-p nnfolder-nov-buffer-file-name) + (nnheader-insert-file-contents nnfolder-nov-buffer-file-name))) + (push (cons group buffer) nnfolder-nov-buffer-alist) + buffer))) + +(defun nnfolder-save-nov () + (save-excursion + (while nnfolder-nov-buffer-alist + (when (buffer-name (cdar nnfolder-nov-buffer-alist)) + (set-buffer (cdar nnfolder-nov-buffer-alist)) + (when (buffer-modified-p) + (gnus-make-directory (file-name-directory + nnfolder-nov-buffer-file-name)) + (nnmail-write-region 1 (point-max) nnfolder-nov-buffer-file-name + nil 'nomesg)) + (set-buffer-modified-p nil) + (kill-buffer (current-buffer))) + (setq nnfolder-nov-buffer-alist (cdr nnfolder-nov-buffer-alist))))) + +(defun nnfolder-nov-delete-article (group article) + (save-excursion + (set-buffer (nnfolder-open-nov group)) + (when (nnheader-find-nov-line article) + (delete-region (point) (progn (forward-line 1) (point)))) + t)) + +(defun nnfolder-retrieve-headers-with-nov (articles &optional fetch-old) + (if (or gnus-nov-is-evil nnfolder-nov-is-evil) + nil + (let ((nov (nnfolder-group-nov-pathname nnfolder-current-group))) + (when (file-exists-p nov) + (save-excursion + (set-buffer nntp-server-buffer) + (erase-buffer) + (nnheader-insert-file-contents nov) + (if (and fetch-old + (not (numberp fetch-old))) + t ; Don't remove anything. + (nnheader-nov-delete-outside-range + (if fetch-old (max 1 (- (car articles) fetch-old)) + (car articles)) + (car (last articles))) + t)))))) + +(defun nnfolder-parse-head (&optional number b e) + "Parse the head of the current buffer." + (let ((buf (current-buffer)) + chars) + (save-excursion + (unless b + (setq b (if (nnmail-search-unix-mail-delim-backward) + (point) (point-min))) + (forward-line 1) + (setq e (if (nnmail-search-unix-mail-delim) + (point) (point-max)))) + (setq chars (- e b)) + (unless (zerop chars) + (goto-char b) + (if (search-forward "\n\n" e t) (setq e (1- (point))))) + (with-temp-buffer + (insert-buffer-substring buf b e) + ;; Fold continuation lines. + (goto-char (point-min)) + (while (re-search-forward "\\(\r?\n[ \t]+\\)+" nil t) + (replace-match " " t t)) + ;; Remove any tabs; they are too confusing. + (subst-char-in-region (point-min) (point-max) ?\t ? ) + (let ((headers (nnheader-parse-head t))) + (mail-header-set-chars headers chars) + (mail-header-set-number headers number) + headers))))) + +(defun nnfolder-add-nov (group article headers) + "Add a nov line for the GROUP base." + (save-excursion + (set-buffer (nnfolder-open-nov group)) + (goto-char (point-max)) + (mail-header-set-number headers article) + (nnheader-insert-nov headers))) (provide 'nnfolder)