;;; gnus-start.el --- startup functions for Gnus
-;; Copyright (C) 1996,97,98,99 Free Software Foundation, Inc.
+;; Copyright (C) 1996, 1997, 1998, 1999, 2000
+;; Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; Keywords: news
:group 'gnus-start
:type 'file)
+(defcustom gnus-product-directory
+ (nnheader-concat gnus-directory (concat "." gnus-product-name))
+ "Product depend data files directory."
+ :group 'gnus-start
+ :type '(choice directory (const 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-setup-news-hook '(gnus-compile)
+(defcustom gnus-setup-news-hook nil
"A hook after reading the .newsrc file, but before generating the buffer."
:group 'gnus-start
:type 'hook)
(defvar nnoo-state-alist)
(defvar gnus-current-select-method)
-(defun gnus-clear-system ()
- "Clear all variables and buffers."
- ;; Clear Gnus variables.
+(defun gnus-clear-quick-file-variables ()
+ "Clear all variables in quick startup files."
(let ((variables gnus-variable-list))
+ ;; Clear Gnus variables.
(while variables
(set (car variables) nil)
(setq variables (cdr variables))))
+ (let ((files gnus-product-variable-file-list))
+ (while files
+ (let ((variables (nthcdr 3 (car files))))
+ (while variables
+ (set (car variables) nil)
+ (setq variables (cdr variables))))
+ (setq files (cdr files)))))
+
+(defun gnus-clear-system ()
+ "Clear all variables and buffers."
+ ;; Clear gnus variables.
+ (gnus-clear-quick-file-variables)
;; Clear other internal variables.
(setq gnus-list-of-killed-groups nil
gnus-have-read-active-file nil
gnus-newsgroup-unreads nil
nnoo-state-alist nil
gnus-current-select-method nil
+ nnmail-split-history nil
gnus-ephemeral-servers nil)
(gnus-shutdown 'gnus)
;; Kill the startup file.
(when gnus-simple-splash
(setq gnus-simple-splash nil)
(cond
- (gnus-xemacs
+ ((featurep 'xemacs)
(gnus-xmas-splash))
((and (eq window-system 'x)
(= (frame-height) (1+ (window-height))))
;;;###autoload
(defun gnus-unload ()
- "Unload all Gnus features."
+ "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)
- (unless (boundp 'load-history)
- (error "Sorry, `gnus-unload' is not implemented in this Emacs version"))
- (let ((history load-history)
- feature)
- (while history
- (and (string-match "^\\(gnus\\|nn\\)" (caar history))
- (setq feature (cdr (assq 'provide (car history))))
- (unload-feature feature 'force))
- (setq history (cdr history)))))
+ (dolist (feature features)
+ (if (string-match "^\\(gnus-\\|nn\\|mm-\\|rfc\\)" (symbol-name feature))
+ (unload-feature feature 'force))))
\f
;;;
(when (and init gnus-slave)
(gnus-dribble-clear))
- (gnus-update-format-specifications nil
- 'article-mode
- 'group
- 'group-mode
- 'summary
- 'summary-mode)
+ (gnus-update-format-specifications)
;; See whether we need to read the description file.
(when (and (boundp 'gnus-group-line-format)
(defun gnus-check-first-time-used ()
(catch 'ended
- (let ((files (list gnus-current-startup-file
- (concat gnus-current-startup-file ".el")
- (concat gnus-current-startup-file ".eld")
- gnus-startup-file
- (concat gnus-startup-file ".el")
- (concat gnus-startup-file ".eld"))))
- (while files
- (when (file-exists-p (pop files))
- (throw 'ended nil))))
+ ;; First check if any of the following files exist. If they do,
+ ;; it's not the first time the user has used Gnus.
+ (dolist (file (list gnus-current-startup-file
+ (concat gnus-current-startup-file ".el")
+ (concat gnus-current-startup-file ".eld")
+ gnus-startup-file
+ (concat gnus-startup-file ".el")
+ (concat gnus-startup-file ".eld")))
+ (when (file-exists-p file)
+ (throw 'ended nil)))
(gnus-message 6 "First time user; subscribing you to default groups")
(unless (gnus-read-active-file-p)
(let ((gnus-read-active-file t))
(gnus-read-active-file)))
(setq gnus-newsrc-last-checked-date (current-time-string))
- (let ((groups gnus-default-subscribed-newsgroups)
+ ;; Subscribe to the default newsgroups.
+ (let ((groups (or gnus-default-subscribed-newsgroups
+ gnus-backup-default-subscribed-newsgroups))
group)
- (if (eq groups t)
- nil
- (setq groups (or groups gnus-backup-default-subscribed-newsgroups))
+ (when (eq groups t)
+ ;; If t, we subscribe (or not) all groups as if they were new.
(mapatoms
(lambda (sym)
- (if (null (setq group (symbol-name sym)))
- ()
+ (when (setq group (symbol-name sym))
(let ((do-sub (gnus-matches-options-n group)))
(cond
((eq do-sub 'subscribe)
(t
(push group gnus-killed-list))))))
gnus-active-hashtb)
- (while groups
- (when (gnus-active (car groups))
+ (dolist (group groups)
+ ;; Only subscribe the default groups that are activated.
+ (when (gnus-active group)
(gnus-group-change-level
- (car groups) gnus-level-default-subscribed gnus-level-killed))
- (setq groups (cdr groups)))
+ group gnus-level-default-subscribed gnus-level-killed)))
(save-excursion
(set-buffer gnus-group-buffer)
(gnus-group-make-help-group))
(when gnus-novice-user
(gnus-message 7 "`A k' to list killed groups"))))))
-
(defun gnus-subscribe-group (group &optional previous method)
"Subcribe GROUP and put it after PREVIOUS."
(gnus-group-change-level
(condition-case ()
(inline (gnus-request-group group dont-check method))
;;(error nil)
- (quit nil))
+ (quit
+ (message "Quit activating %s" group)
+ nil))
(setq active (gnus-parse-active))
;; If there are no articles in the group, the GROUP
;; command may have responded with the `(0 . 0)'. We
(setq method (gnus-server-get-method nil method)))))
(not (gnus-secondary-method-p method)))
;; These groups are foreign. Check the level.
- (when (<= (gnus-info-level info) foreign-level)
- (setq active (gnus-activate-group group 'scan))
+ (when (and (<= (gnus-info-level info) foreign-level)
+ (setq active (gnus-activate-group group 'scan)))
;; Let the Gnus agent save the active file.
(when (and gnus-agent gnus-plugged active)
(gnus-agent-save-group-info
;; hack: `nnmail-get-new-mail' changes the mail-source depending
;; on the group, so we must perform a scan for every group
;; if the users has any directory mail sources.
- (if (and (null (assq 'directory
+ ;; hack: if `nnmail-scan-directory-mail-source-once' is non-nil,
+ ;; for it scan all spool files even when the groups are
+ ;; not required.
+ (if (and
+ (or nnmail-scan-directory-mail-source-once
+ (null (assq 'directory
(or mail-sources
- (if (listp nnmail-spool-file)
+ (if (listp nnmail-spool-file)
nnmail-spool-file
- (list nnmail-spool-file)))))
- (member method scanned-methods))
+ (list nnmail-spool-file))))))
+ (member method scanned-methods))
(setq active (gnus-activate-group group))
(setq active (gnus-activate-group group 'scan))
(push method scanned-methods))
- (inline (gnus-close-group group))))))
+ (when active
+ (gnus-close-group group))))))
;; Get the number of unread articles in the group.
(cond
(let* ((mg (pop retrievegroups))
(method (or (car mg) gnus-select-method))
(groups (cdr mg)))
- (gnus-check-server method)
- ;; Request that the backend scan its incoming messages.
- (when (gnus-check-backend-function 'request-scan (car method))
- (gnus-request-scan nil method))
- (gnus-read-active-file-2 (mapcar (lambda (group)
- (gnus-group-real-name group))
- groups) method)
- (dolist (group groups)
- (cond
- ((setq active (gnus-active (gnus-info-group
- (setq info (gnus-get-info group)))))
- (inline (gnus-get-unread-articles-in-group info active t)))
- (t
- ;; The group couldn't be reached, so we nix out the number of
- ;; unread articles and stuff.
- (gnus-set-active group nil)
- (setcar (gnus-gethash group gnus-newsrc-hashtb) t))))))
+ (when (gnus-check-server method)
+ ;; Request that the backend scan its incoming messages.
+ (when (gnus-check-backend-function 'request-scan (car method))
+ (gnus-request-scan nil method))
+ (gnus-read-active-file-2 (mapcar (lambda (group)
+ (gnus-group-real-name group))
+ groups) method)
+ (dolist (group groups)
+ (cond
+ ((setq active (gnus-active (gnus-info-group
+ (setq info (gnus-get-info group)))))
+ (inline (gnus-get-unread-articles-in-group info active t)))
+ (t
+ ;; The group couldn't be reached, so we nix out the number of
+ ;; unread articles and stuff.
+ (gnus-set-active group nil)
+ (setcar (gnus-gethash group gnus-newsrc-hashtb) t)))))))
(gnus-message 5 "Checking new news...done")))
(gnus-read-active-file-1 method force)
;; We catch C-g so that we can continue past servers
;; that do not respond.
- (quit nil)))))))
+ (quit
+ (message "Quit reading the active file")
+ nil)))))))
(defun gnus-read-active-file-1 (method force)
(let (where mesg)
(gnus-check-server method)
(let ((list-type (gnus-retrieve-groups groups method)))
(cond ((not list-type)
- (gnus-error
+ (gnus-error
1.2 "Cannot read partial active file from %s server."
(car method)))
((eq list-type 'active)
(gnus-active-to-gnus-format method gnus-active-hashtb nil t))
(t
(gnus-groups-to-gnus-format method gnus-active-hashtb t)))))))
-
+
;; Read an active file and place the results in `gnus-active-hashtb'.
(defun gnus-active-to-gnus-format (&optional method hashtb ignore-errors
real-active)
(gnus-group-prefixed-name "" method))))
;; Let the Gnus agent save the active file.
- (if (and gnus-agent real-active gnus-plugged (gnus-agent-method-p method))
+ (if (and gnus-agent
+ real-active
+ gnus-plugged
+ (gnus-agent-method-p method))
(progn
(gnus-agent-save-groups method)
(gnus-active-to-gnus-format method hashtb nil real-active))
"Read startup file.
If FORCE is non-nil, the .newsrc file is read."
;; Reset variables that might be defined in the .newsrc.eld file.
- (let ((variables gnus-variable-list))
- (while variables
- (set (car variables) nil)
- (setq variables (cdr variables))))
+ (gnus-clear-quick-file-variables)
(let* ((newsrc-file gnus-current-startup-file)
(quick-file (concat newsrc-file ".el")))
(save-excursion
(buffer-disable-undo)
(gnus-newsrc-to-gnus-format)
(kill-buffer (current-buffer))
- (gnus-message 5 "Reading %s...done" newsrc-file)))
-
- ;; Convert old to new.
- (gnus-convert-old-newsrc))))
-
-(defun gnus-convert-old-newsrc ()
- "Convert old newsrc into the new format, if needed."
- (let ((fcv (and gnus-newsrc-file-version
- (gnus-continuum-version gnus-newsrc-file-version))))
- (cond
- ;; No .newsrc.eld file was loaded.
- ((null fcv) nil)
- ;; Gnus 5 .newsrc.eld was loaded.
- ((< fcv (gnus-continuum-version "September Gnus v0.1"))
- (gnus-convert-old-ticks)))))
-
-(defun gnus-convert-old-ticks ()
- (let ((newsrc (cdr gnus-newsrc-alist))
- marks info dormant ticked)
- (while (setq info (pop newsrc))
- (when (setq marks (gnus-info-marks info))
- (setq dormant (cdr (assq 'dormant marks))
- ticked (cdr (assq 'tick marks)))
- (when (or dormant ticked)
- (gnus-info-set-read
- info
- (gnus-add-to-range
- (gnus-info-read info)
- (nconc (gnus-uncompress-range dormant)
- (gnus-uncompress-range ticked)))))))))
+ (gnus-message 5 "Reading %s...done" newsrc-file))))))
(defun gnus-read-newsrc-el-file (file)
(let ((ding-file (concat file "d")))
(gnus-message 5 "Reading %s..." ding-file)
(let (gnus-newsrc-assoc)
(when (file-exists-p ding-file)
- (condition-case nil
- (with-temp-buffer
- (insert-file-contents-as-coding-system
- gnus-startup-file-coding-system ding-file)
- (eval-region (point-min) (point-max)))
- (error
- (ding)
- (unless (gnus-yes-or-no-p
- (format "Error in %s; continue? " ding-file))
- (error "Error in %s" ding-file))))
+ (with-temp-buffer
+ (condition-case nil
+ (progn
+ (insert-file-contents-as-coding-system
+ gnus-startup-file-coding-system ding-file)
+ (eval-region (point-min) (point-max)))
+ (error
+ (ding)
+ (or (not (or (zerop (buffer-size))
+ (eq 'binary gnus-startup-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 gnus-newsrc-assoc
(setq gnus-newsrc-alist gnus-newsrc-assoc))))
(gnus-make-hashtable-from-newsrc-alist)
(gnus-message 5 "Reading %s..." file)
;; The .el file is newer than the .eld file, so we read that one
;; as well.
- (gnus-read-old-newsrc-el-file file))))
+ (gnus-read-old-newsrc-el-file file)))
+ (when (and gnus-product-directory
+ (file-directory-p gnus-product-directory))
+ (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)
+ (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-startup-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)
+ (let (error gnus-product-file-version method file-ver)
+ (when (or
+ (condition-case err
+ (let ((coding-system-for-read coding)
+ (input-coding-system coding))
+ (load (expand-file-name file gnus-product-directory) t nil t)
+ nil)
+ (error
+ (message "%s" err)
+ (setq error t)))
+ (and (assq 'emacs-version checking-methods)
+ (not (string= emacs-version
+ (cdr (assq 'emacs-version
+ gnus-product-file-version)))))
+ (and (setq method (assq 'product-version checking-methods))
+ (or (not (setq file-ver
+ (cdr (assq 'product-version
+ gnus-product-file-version))))
+ (< (product-version-compare file-ver (cadr method)) 0))))
+ (unless error
+ (message "\"%s\" seems to have mismatched contents, updating..."
+ file))
+ (while variables
+ (set (car variables) nil)
+ (gnus-product-variable-touch (car variables))
+ (setq variables (cdr variables))))))
;; Parse the old-style quick startup file
(defun gnus-read-old-newsrc-el-file (file)
(gnus-message
5 "Saving %s.eld...done" gnus-current-startup-file))
(gnus-dribble-delete-file)
- (gnus-group-set-mode-line)))))
+ (gnus-group-set-mode-line))))
+ (when gnus-product-directory
+ (gnus-product-save-variable-file)))
;; Call the function above at C-x C-c.
(defadvice save-buffers-kill-emacs (before save-gnus-newsrc-file-maybe
(gnus-prin1 (symbol-value variable))
(insert ")\n"))))))
+(defun gnus-product-variable-touch (&rest variables)
+ (while variables
+ (put (pop variables) 'gnus-product-variable 'dirty)))
+
+(defun gnus-product-variables-dirty-p (variables)
+ (catch 'done
+ (while variables
+ (when (eq (get (car variables) 'gnus-product-variable) 'dirty)
+ (throw 'done t))
+ (setq variables (cdr variables)))))
+
+(defun gnus-product-save-variable-file (&optional force)
+ "Save all product variables to files, when need to be saved."
+ (let ((list gnus-product-variable-file-list))
+ (gnus-make-directory gnus-product-directory)
+ (while list
+ (apply 'gnus-product-save-variable-file-1 force (car list))
+ (setq list (cdr list)))))
+
+(defun gnus-product-save-variable-file-1 (force file checking-methods coding
+ &rest variables)
+ "Save a product variable file, when need to be saved."
+ (when (or force
+ (gnus-product-variables-dirty-p variables))
+ (let ((product (product-find 'gnus-vers)))
+ (set-buffer (gnus-get-buffer-create " *gnus-product*"))
+ (make-local-variable 'version-control)
+ (setq version-control 'never)
+ (setq file (expand-file-name file gnus-product-directory)
+ buffer-file-name file
+ default-directory (file-name-directory file))
+ (buffer-disable-undo)
+ (erase-buffer)
+ (gnus-message 5 "Saving %s..." file)
+ (apply 'gnus-product-quick-file-format product checking-methods coding
+ variables)
+ (save-buffer-as-coding-system coding)
+ (kill-buffer (current-buffer))
+ (while variables
+ (put (car variables) 'gnus-product-variable nil)
+ (setq variables (cdr variables)))
+ (gnus-message
+ 5 "Saving %s...done" file))))
+
+(defun gnus-product-quick-file-format (product checking-methods
+ coding &rest variables)
+ "Insert gnus product depend variables in lisp format."
+ (let ((print-quoted t)
+ (print-escape-newlines t)
+ variable param)
+ (insert (format ";; -*- Mode: emacs-lisp; coding: %s -*-\n" coding))
+ (insert (format ";; %s startup file.\n" (product-name product)))
+ (when (setq param (cdr (assq 'product-version checking-methods)))
+ (insert "(or (>= (product-version-compare "
+ "(product-version (product-find 'gnus-vers))\n"
+ "\t\t\t\t '" (apply 'prin1-to-string param) ")\n"
+ "\t0)\n"
+ " (error \"This file was created by later version of "
+ "gnus.\"))\n"))
+ (insert "(setq gnus-product-file-version \n"
+ " '((product-version . "
+ (prin1-to-string (product-version product)) ")\n"
+ "\t(emacs-version . " (prin1-to-string emacs-version) ")))\n")
+ (while variables
+ (when (and (boundp (setq variable (pop variables)))
+ (symbol-value variable))
+ (insert "(setq " (symbol-name variable) " '")
+ (gnus-prin1 (symbol-value variable))
+ (insert ")\n")))))
+
(defun gnus-strip-killed-list ()
"Return the killed list minus the groups that match `gnus-save-killed-list'."
(let ((list gnus-killed-list)
(make-temp-name (concat gnus-current-startup-file "-slave-")))
(modes (ignore-errors
(file-modes (concat gnus-current-startup-file ".eld")))))
- (gnus-write-buffer slave-name)
+ (gnus-write-buffer-as-coding-system
+ gnus-startup-file-coding-system slave-name)
(when modes
(set-file-modes slave-name modes)))))
(while slave-files
(erase-buffer)
(setq file (nth 1 (car slave-files)))
- (insert-file-contents file)
+ (nnheader-insert-file-contents file)
(when (condition-case ()
(progn
(eval-buffer (current-buffer))
(let ((str (buffer-substring
(point) (progn (end-of-line) (point))))
(coding
- (and (or gnus-xemacs
+ (and (or (featurep 'xemacs)
(and (boundp 'enable-multibyte-characters)
enable-multibyte-characters))
(fboundp 'gnus-mule-get-coding-system)
"Declare backend NAME with ABILITIES as a Gnus backend."
(setq gnus-valid-select-methods
(nconc gnus-valid-select-methods
- (list (apply 'list name abilities)))))
+ (list (apply 'list name abilities))))
+ (gnus-redefine-select-method-widget))
(defun gnus-set-default-directory ()
"Set the default directory in the current buffer to `gnus-default-directory'.
projects / elisp / gnus.git- / blobdiff