;;; gnus-start.el --- startup functions for Gnus
-;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002
+;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
;; Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
:group 'gnus-start
:type '(choice directory (const nil)))
+(defcustom gnus-backup-startup-file 'never
+ "Whether to create backup files.
+This variable takes the same values as the `version-control'
+variable."
+ :group 'gnus-start
+ :type '(choice (const :tag "Never" never)
+ (const :tag "If existing" nil)
+ (other :tag "Always" t)))
+
+(defcustom gnus-save-startup-file-via-temp-buffer t
+ "Whether to write the startup file contents to a buffer then save
+the buffer or write directly to the file. The buffer is faster
+because all of the contents are written at once. The direct write
+uses considerably less memory."
+ :group 'gnus-start
+ :type '(choice (const :tag "Write via buffer" t)
+ (const :tag "Write directly to file" nil)))
+
(defcustom gnus-init-file (nnheader-concat gnus-home-directory ".gnus")
"Your Gnus Emacs-Lisp startup file name.
If a file with the `.el' or `.elc' suffixes exists, it will be read instead."
:group 'gnus-start
:type 'hook)
+(defcustom gnus-get-top-new-news-hook nil
+ "A hook run just before Gnus checks for new news globally."
+ :group 'gnus-group-new
+ :type 'hook)
+
(defcustom gnus-get-new-news-hook nil
"A hook run just before Gnus checks for new news."
:group 'gnus-group-new
:group 'gnus-group-new
:type 'hook)
+(defcustom gnus-read-newsrc-el-hook nil
+ "A hook called after reading the newsrc.eld? file."
+ :group 'gnus-newsrc
+ :type 'hook)
+
(defcustom gnus-save-newsrc-hook nil
"A hook called before saving any of the newsrc files."
:group 'gnus-newsrc
;;; General various misc type functions.
;; Silence byte-compiler.
-(defvar gnus-current-headers)
-(defvar gnus-thread-indent-array)
-(defvar gnus-newsgroup-name)
-(defvar gnus-newsgroup-headers)
-(defvar gnus-group-list-mode)
-(defvar gnus-group-mark-positions)
-(defvar gnus-newsgroup-data)
-(defvar gnus-newsgroup-unreads)
-(defvar nnoo-state-alist)
-(defvar gnus-current-select-method)
+(eval-when-compile
+ (defvar gnus-current-headers)
+ (defvar gnus-thread-indent-array)
+ (defvar gnus-newsgroup-name)
+ (defvar gnus-newsgroup-headers)
+ (defvar gnus-group-list-mode)
+ (defvar gnus-group-mark-positions)
+ (defvar gnus-newsgroup-data)
+ (defvar gnus-newsgroup-unreads)
+ (defvar nnoo-state-alist)
+ (defvar gnus-current-select-method)
+ (defvar mail-sources)
+ (defvar nnmail-scan-directory-mail-source-once)
+ (defvar nnmail-split-history)
+ (defvar nnmail-spool-file))
(defun gnus-clear-quick-file-variables ()
"Clear all variables in quick startup files."
(kill-buffer (get-file-buffer (gnus-newsgroup-kill-file nil))))
(gnus-kill-buffer nntp-server-buffer)
;; Kill Gnus buffers.
- (let ((buffers (gnus-buffers)))
- (when buffers
- (mapcar 'kill-buffer buffers)))
+ (dolist (buffer (gnus-buffers))
+ (gnus-kill-buffer buffer))
;; Remove Gnus frames.
(gnus-kill-gnus-frames))
(gnus-group-set-parameter
"nndraft:drafts" 'gnus-dummy '((gnus-draft-mode)))))
-;;;###autoload
-(defun gnus-unload ()
- "Unload all Gnus features.
-\(For some value of `all' or `Gnus'.) Currently, features whose names
-have prefixes `gnus-', `nn', `mm-' or `rfc' are unloaded. Use
-cautiously -- unloading may cause trouble."
- (interactive)
- (dolist (feature features)
- (if (string-match "^\\(gnus-\\|nn\\|mm-\\|rfc\\)" (symbol-name feature))
- (unload-feature feature 'force))))
-
\f
;;;
;;; Dribble file
t)
(if (or debug-on-error debug-on-quit)
(inline (gnus-request-group group dont-check method))
- (condition-case ()
+ (condition-case nil
(inline (gnus-request-group group dont-check method))
;;(error nil)
(quit
(setq range (cdr range)))
(setq num (max 0 (- (cdr active) num)))))
;; Set the number of unread articles.
- (when info
+ (when (and info
+ (gnus-gethash (gnus-info-group info) gnus-newsrc-hashtb))
(setcar (gnus-gethash (gnus-info-group info) gnus-newsrc-hashtb) num))
num)))
(t 0))
level))
scanned-methods info group active method retrieve-groups)
- (gnus-message 5 "Checking new news...")
+ (gnus-message 6 "Checking new news...")
(while newsrc
(setq active (gnus-active (setq group (gnus-info-group
(gnus-set-active group nil)
(setcar (gnus-gethash group gnus-newsrc-hashtb) t)))))))
- (gnus-message 5 "Checking new news...done")))
+ (gnus-message 6 "Checking new news...done")))
;; Create a hash table out of the newsrc alist. The `car's of the
;; alist elements are used as keys.
(setq article (pop articles)) ranges)
(push article news)))
(when news
+ ;; Enter this list into the group info.
(gnus-info-set-read
info (gnus-remove-from-range (gnus-info-read info) (nreverse news)))
+
+ ;; Set the number of unread articles in gnus-newsrc-hashtb.
+ (gnus-get-unread-articles-in-group info (gnus-active group))
+
+ ;; Insert the change into the group buffer and the dribble file.
+ (gnus-group-update-group group t))))
+
+(defun gnus-make-ascending-articles-unread (group articles)
+ "Mark ascending ARTICLES in GROUP as unread."
+ (let* ((entry (or (gnus-gethash group gnus-newsrc-hashtb)
+ (gnus-gethash (gnus-group-real-name group)
+ gnus-newsrc-hashtb)))
+ (info (nth 2 entry))
+ (ranges (gnus-info-read info))
+ (r ranges)
+ modified)
+
+ (while articles
+ (let ((article (pop articles))) ; get the next article to remove from ranges
+ (while (let ((range (car ranges))) ; note the current range
+ (if (atom range) ; single value range
+ (cond ((not range)
+ ;; the articles extend past the end of the ranges
+ ;; OK - I'm done
+ (setq articles nil))
+ ((< range article)
+ ;; this range preceeds the article. Leave the range unmodified.
+ (pop ranges)
+ ranges)
+ ((= range article)
+ ;; this range exactly matches the article; REMOVE THE RANGE.
+ ;; NOTE: When the range being removed is the last range, the list is corrupted by inserting null at its end.
+ (setcar ranges (cadr ranges))
+ (setcdr ranges (cddr ranges))
+ (setq modified (if (car ranges) t 'remove-null))
+ nil))
+ (let ((min (car range))
+ (max (cdr range)))
+ ;; I have a min/max range to consider
+ (cond ((> min max) ; invalid range introduced by splitter
+ (setcar ranges (cadr ranges))
+ (setcdr ranges (cddr ranges))
+ (setq modified (if (car ranges) t 'remove-null))
+ ranges)
+ ((= min max)
+ ;; replace min/max range with a single-value range
+ (setcar ranges min)
+ ranges)
+ ((< max article)
+ ;; this range preceeds the article. Leave the range unmodified.
+ (pop ranges)
+ ranges)
+ ((< article min)
+ ;; this article preceeds the range. Return null to move to the
+ ;; next article
+ nil)
+ (t
+ ;; this article splits the range into two parts
+ (setcdr ranges (cons (cons (1+ article) max) (cdr ranges)))
+ (setcdr range (1- article))
+ (setq modified t)
+ ranges))))))))
+
+ (when modified
+ (when (eq modified 'remove-null)
+ (setq r (delq nil r)))
+ ;; Enter this list into the group info.
+ (gnus-info-set-read info r)
+
+ ;; Set the number of unread articles in gnus-newsrc-hashtb.
+ (gnus-get-unread-articles-in-group info (gnus-active group))
+
+ ;; Insert the change into the group buffer and the dribble file.
(gnus-group-update-group group t))))
;; Enter all dead groups into the hashtb.
(kill-buffer (current-buffer))
(gnus-message 5 "Reading %s...done" newsrc-file))))))
+(defun gnus-load (file &optional coding-system)
+ "Load FILE, but in such a way that read errors can be reported."
+ (with-temp-buffer
+ (if coding-system
+ (insert-file-contents-as-coding-system coding-system file)
+ (insert-file-contents file))
+ (while (not (eobp))
+ (condition-case type
+ (let ((form (read (current-buffer))))
+ (eval form))
+ (error
+ (unless (eq (car type) 'end-of-file)
+ (let ((error (format "Error in %s line %d" file
+ (count-lines (point-min) (point)))))
+ (ding)
+ (unless (gnus-yes-or-no-p (concat error "; continue? "))
+ (error "%s" error)))))))))
+
(defun gnus-read-newsrc-el-file (file)
(let ((ding-file (concat file "d")))
- ;; We always, always read the .eld file.
- (gnus-message 5 "Reading %s..." ding-file)
- (let (gnus-newsrc-assoc)
- (when (file-exists-p ding-file)
- (with-temp-buffer
- (if (or debug-on-error debug-on-quit)
- (progn
- (insert-file-contents-as-coding-system
- gnus-ding-file-coding-system ding-file)
- (eval-region (point-min) (point-max)))
- (condition-case nil
- (progn
- (insert-file-contents-as-coding-system
- gnus-ding-file-coding-system ding-file)
- (eval-region (point-min) (point-max)))
- (error
- (ding)
- (or (not (or (zerop (buffer-size))
- (eq 'binary gnus-ding-file-coding-system)
- (gnus-re-read-newsrc-el-file ding-file)))
- (gnus-yes-or-no-p
- (format "Error in %s; continue? " ding-file))
- (error "Error in %s" ding-file))))))
+ (when (file-exists-p ding-file)
+ ;; We always, always read the .eld file.
+ (gnus-message 5 "Reading %s..." ding-file)
+ (let (gnus-newsrc-assoc)
+ (gnus-load ding-file gnus-ding-file-coding-system)
;; ;; Older versions of `gnus-format-specs' are no longer valid
;; ;; in Oort Gnus 0.01.
;; (let ((version
(let ((list gnus-product-variable-file-list))
(while list
(apply 'gnus-product-read-variable-file-1 (car list))
- (setq list (cdr list))))))
-
-(defun gnus-re-read-newsrc-el-file (file)
- "Attempt to re-read .newsrc.eld file. Returns `nil' if successful.
-The backup file \".newsrc.eld_\" will be created before re-reading."
- (message "Error in %s; retrying..." file)
- (if (and
- (condition-case nil
- (let ((backup (concat file "_")))
- (copy-file file backup 'ok-if-already-exists 'keep-time)
- (message " (The backup file %s has been created)" backup)
- t)
- (error nil))
- (progn
- (insert-file-contents-as-binary file nil nil nil 'replace)
- (goto-char (point-min))
- (when (re-search-forward
- "^[\t ]*([\t\n\r ]*setq[\t\n\r ]+gnus-format-specs" nil t)
- (delete-region (goto-char (match-beginning 0)) (forward-list 1))
- (decode-coding-region (point-min) (point-max)
- gnus-ding-file-coding-system)
- (condition-case nil
- (progn
- (eval-region (point-min) (point-max))
- t)
- (error nil)))))
- (prog1
- nil
- (message "Error in %s; retrying...done" file))
- (message "Error in %s; retrying...failed" file)
- t))
+ (setq list (cdr list)))))
+ (gnus-run-hooks 'gnus-read-newsrc-el-hook))
+
+;;(defun gnus-re-read-newsrc-el-file (file)
+;; "Attempt to re-read .newsrc.eld file. Returns nil if successful.
+;;The backup file \".newsrc.eld_\" will be created before re-reading."
+;; (message "Error in %s; retrying..." file)
+;; (if (and
+;; (condition-case nil
+;; (let ((backup (concat file "_")))
+;; (copy-file file backup 'ok-if-already-exists 'keep-time)
+;; (message " (The backup file %s has been created)" backup)
+;; t)
+;; (error nil))
+;; (progn
+;; (insert-file-contents-as-binary file nil nil nil 'replace)
+;; (goto-char (point-min))
+;; (when (re-search-forward
+;; "^[\t ]*([\t\n\r ]*setq[\t\n\r ]+gnus-format-specs" nil t)
+;; (delete-region (goto-char (match-beginning 0)) (forward-list 1))
+;; (decode-coding-region (point-min) (point-max)
+;; gnus-ding-file-coding-system)
+;; (condition-case nil
+;; (progn
+;; (eval-region (point-min) (point-max))
+;; t)
+;; (error nil)))))
+;; (prog1
+;; nil
+;; (message "Error in %s; retrying...done" file))
+;; (message "Error in %s; retrying...failed" file)
+;; t))
(defun gnus-product-read-variable-file-1 (file checking-methods coding
&rest variables)
(setq gnus-newsrc-options-n out))))
+(eval-and-compile
+ (defalias 'gnus-long-file-names
+ (if (fboundp 'msdos-long-file-names)
+ 'msdos-long-file-names
+ (lambda () t))))
+
(defun gnus-save-newsrc-file (&optional force)
"Save .newsrc file."
;; Note: We cannot save .newsrc file if all newsgroups are removed
;; Save .newsrc.eld.
(set-buffer (gnus-get-buffer-create " *Gnus-newsrc*"))
(make-local-variable 'version-control)
- (setq version-control 'never)
+ (setq version-control gnus-backup-startup-file)
(setq buffer-file-name
(concat gnus-current-startup-file ".eld"))
(setq default-directory (file-name-directory buffer-file-name))
(buffer-disable-undo)
(erase-buffer)
- (gnus-message 5 "Saving %s.eld..." gnus-current-startup-file)
- (gnus-gnus-to-quick-newsrc-format)
- (gnus-run-hooks 'gnus-save-quick-newsrc-hook)
- (save-buffer-as-coding-system gnus-ding-file-coding-system)
- (kill-buffer (current-buffer))
+ (gnus-message 5 "Saving %s.eld..." gnus-current-startup-file)
+
+ (if gnus-save-startup-file-via-temp-buffer
+ (let ((coding-system-for-write gnus-ding-file-coding-system)
+ (output-coding-system gnus-ding-file-coding-system)
+ (standard-output (current-buffer)))
+ (gnus-gnus-to-quick-newsrc-format)
+ (gnus-run-hooks 'gnus-save-quick-newsrc-hook)
+ (save-buffer))
+ (let ((coding-system-for-write gnus-ding-file-coding-system)
+ (output-coding-system gnus-ding-file-coding-system)
+ (version-control gnus-backup-startup-file)
+ (startup-file (concat gnus-current-startup-file ".eld"))
+ (working-dir (file-name-directory gnus-current-startup-file))
+ working-file
+ (i -1))
+ ;; Generate the name of a non-existent file.
+ (while (progn (setq working-file
+ (format
+ (if (and (eq system-type 'ms-dos)
+ (not (gnus-long-file-names)))
+ "%s#%d.tm#" ; MSDOS limits files to 8+3
+ (if (memq system-type '(vax-vms axp-vms))
+ "%s$tmp$%d"
+ "%s#tmp#%d"))
+ working-dir (setq i (1+ i))))
+ (file-exists-p working-file)))
+
+ (unwind-protect
+ (progn
+ (gnus-with-output-to-file working-file
+ (gnus-gnus-to-quick-newsrc-format)
+ (gnus-run-hooks 'gnus-save-quick-newsrc-hook))
+
+ ;; These bindings will mislead the current buffer
+ ;; into thinking that it is visiting the startup
+ ;; file.
+ (let ((buffer-backed-up nil)
+ (buffer-file-name startup-file)
+ (file-precious-flag t)
+ (setmodes (file-modes startup-file)))
+ ;; Backup the current version of the startup file.
+ (backup-buffer)
+
+ ;; Replace the existing startup file with the temp file.
+ (rename-file working-file startup-file t)
+ (set-file-modes startup-file setmodes)))
+ (condition-case nil
+ (delete-file working-file)
+ (file-error nil)))))
+
+ (gnus-kill-buffer (current-buffer))
(gnus-message
5 "Saving %s.eld...done" gnus-current-startup-file))
(gnus-dribble-delete-file)
(gnus-save-newsrc-file)))
(defun gnus-gnus-to-quick-newsrc-format ()
- "Insert Gnus variables such as gnus-newsrc-alist in lisp format."
- (let ((print-quoted t)
- (print-escape-newlines t))
-
- (insert ";; -*- emacs-lisp -*-\n")
- (insert ";; Gnus startup file.\n")
- (insert "\
+ "Print Gnus variables such as gnus-newsrc-alist in lisp format."
+ (princ ";; -*- emacs-lisp -*-\n")
+ (princ ";; Gnus startup file.\n")
+ (princ "\
;; Never delete this file -- if you want to force Gnus to read the
;; .newsrc file (if you have one), touch .newsrc instead.\n")
- (insert "(setq gnus-newsrc-file-version "
- (prin1-to-string gnus-version) ")\n")
- (let* ((gnus-killed-list
+ (princ "(setq gnus-newsrc-file-version ")
+ (princ (gnus-prin1-to-string gnus-version))
+ (princ ")\n")
+ (let* ((print-quoted t)
+ (print-readably t)
+ (print-escape-multibyte nil)
+ (print-escape-nonascii t)
+ (print-length nil)
+ (print-level nil)
+ (print-escape-newlines t)
+ (gnus-killed-list
(if (and gnus-save-killed-list
(stringp gnus-save-killed-list))
(gnus-strip-killed-list)
(while variables
(when (and (boundp (setq variable (pop variables)))
(symbol-value variable))
- (insert "(setq " (symbol-name variable) " '")
- (gnus-prin1 (symbol-value variable))
- (insert ")\n"))))))
+ (princ "(setq ")
+ (princ (symbol-name variable))
+ (princ " '")
+ (prin1 (symbol-value variable))
+ (princ ")\n")))))
(defun gnus-product-variable-touch (&rest variables)
(while variables
(file-name-as-directory (expand-file-name gnus-default-directory))
default-directory)))
-(defun gnus-display-time-event-handler ()
- "Like `display-time-event-handler', but test `display-time-timer'."
- (when (gnus-boundp 'display-time-timer)
- (display-time-event-handler)))
+(eval-and-compile
+(defalias 'gnus-display-time-event-handler
+ (if (gnus-boundp 'display-time-timer)
+ 'display-time-event-handler
+ (lambda () "Does nothing as `display-time-timer' is not bound.
+Would otherwise be an alias for `display-time-event-handler'." nil))))
;;;###autoload
(defun gnus-fixup-nnimap-unread-after-getting-new-news ()
projects / elisp / gnus.git- / blobdiff