Importing pgnus-0.70

[elisp/gnus.git-] / lisp / gnus-cache.el

diff --git a/lisp/gnus-cache.el b/lisp/gnus-cache.el
index b6a2248..d677a48 100644 (file)
--- a/lisp/gnus-cache.el
+++ b/lisp/gnus-cache.el
@@ -1,5 +1,5 @@
 ;;; gnus-cache.el --- cache interface for Gnus
-;; Copyright (C) 1995,96,97,98 Free Software Foundation, Inc.
+;; Copyright (C) 1995,96,97,98,99 Free Software Foundation, Inc.
 
 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
 ;; Keywords: news
@@ -74,6 +74,12 @@ it's not cached."
   :type '(choice (const :tag "off" nil)
                 regexp))
 
+(defvar gnus-cache-overview-coding-system 'raw-text
+  "Coding system used on Gnus cache files.")
+
+(defvar gnus-cache-coding-system 'binary
+  "Coding system used on Gnus cache files.")
+
 \f
 
 ;;; Internal variables.
@@ -121,7 +127,9 @@ it's not cached."
          (set-buffer buffer)
          (if (> (buffer-size) 0)
              ;; Non-empty overview, write it to a file.
-             (gnus-write-buffer overview-file)
+             (let ((coding-system-for-write
+                    gnus-cache-overview-coding-system))
+               (gnus-write-buffer overview-file))
            ;; Empty overview file, remove it
            (when (file-exists-p overview-file)
              (delete-file overview-file))
@@ -150,7 +158,7 @@ it's not cached."
              headers (copy-sequence headers))
        (mail-header-set-number headers (cdr result))))
     (let ((number (mail-header-number headers))
-         file dir)
+         file)
       (when (and number
                 (> number 0)           ; Reffed article.
                 (or force
@@ -164,13 +172,14 @@ it's not cached."
                 (not (file-exists-p (setq file (gnus-cache-file-name
                                                 group number)))))
        ;; Possibly create the cache directory.
-       (gnus-make-directory (setq dir (file-name-directory file)))
+       (gnus-make-directory (file-name-directory file))
        ;; Save the article in the cache.
        (if (file-exists-p file)
            t                           ; The article already is saved.
          (save-excursion
            (set-buffer nntp-server-buffer)
-           (let ((gnus-use-cache nil))
+           (let ((gnus-use-cache nil)
+                 (gnus-article-decode-hook nil))
              (gnus-request-article-this-buffer number group))
            (when (> (buffer-size) 0)
              (gnus-write-buffer file)
@@ -195,17 +204,7 @@ it's not cached."
                    (beginning-of-line))
                (forward-line 1))
              (beginning-of-line)
-             ;; [number subject from date id references chars lines xref]
-             (insert (format "%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t\n"
-                             (mail-header-number headers)
-                             (mail-header-subject headers)
-                             (mail-header-from headers)
-                             (mail-header-date headers)
-                             (mail-header-id headers)
-                             (or (mail-header-references headers) "")
-                             (or (mail-header-chars headers) "")
-                             (or (mail-header-lines headers) "")
-                             (or (mail-header-xref headers) "")))
+             (nnheader-insert-nov headers)
              ;; Update the active info.
              (set-buffer gnus-summary-buffer)
              (gnus-cache-update-active group number)
@@ -259,7 +258,8 @@ it's not cached."
     (when (file-exists-p file)
       (erase-buffer)
       (gnus-kill-all-overlays)
-      (insert-file-contents file)
+      (let ((coding-system-for-read gnus-cache-coding-system))
+       (insert-file-contents file))
       t)))
 
 (defun gnus-cache-possibly-alter-active (group active)
@@ -388,8 +388,8 @@ Returns the list of articles removed."
     (save-excursion
       (setq gnus-cache-buffer
            (cons group
-                 (set-buffer (gnus-get-buffer-create " *gnus-cache-overview*"))))
-      (buffer-disable-undo (current-buffer))
+                 (set-buffer (gnus-get-buffer-create
+                              " *gnus-cache-overview*"))))
       ;; Insert the contents of this group's cache overview.
       (erase-buffer)
       (let ((file (gnus-cache-file-name group ".overview")))
@@ -481,7 +481,6 @@ Returns the list of articles removed."
     (gnus-cache-save-buffers)
     (save-excursion
       (set-buffer cache-buf)
-      (buffer-disable-undo (current-buffer))
       (erase-buffer)
       (insert-file-contents (or file (gnus-cache-file-name group ".overview")))
       (goto-char (point-min))
@@ -511,7 +510,6 @@ Returns the list of articles removed."
   (let ((cache-buf (gnus-get-buffer-create " *gnus-cache*")))
     (save-excursion
       (set-buffer cache-buf)
-      (buffer-disable-undo (current-buffer))
       (erase-buffer))
     (set-buffer nntp-server-buffer)
     (goto-char (point-min))
@@ -570,7 +568,7 @@ $ emacs -batch -l ~/.emacs -l gnus -f gnus-jog-cache"
   "Read the cache active file."
   (gnus-make-directory gnus-cache-directory)
   (if (or (not (file-exists-p gnus-cache-active-file))
-         (not (zerop (nth 7 (file-attributes gnus-cache-active-file))))
+         (zerop (nth 7 (file-attributes gnus-cache-active-file)))
          force)
       ;; There is no active file, so we generate one.
       (gnus-cache-generate-active)
@@ -589,7 +587,7 @@ $ emacs -batch -l ~/.emacs -l gnus -f gnus-jog-cache"
   (when (or force
            (and gnus-cache-active-hashtb
                 gnus-cache-active-altered))
-    (nnheader-temp-write gnus-cache-active-file
+    (with-temp-file gnus-cache-active-file
       (mapatoms
        (lambda (sym)
         (when (and sym (boundp sym))
@@ -636,6 +634,8 @@ If LOW, update the lower bound instead."
     (when top
       (gnus-message 5 "Generating the cache active file...")
       (setq gnus-cache-active-hashtb (gnus-make-hashtable 123)))
+    (when (string-match "^\\(nn[^_]+\\)_" group)
+      (setq group (replace-match "\\1:" t t group)))
     ;; Separate articles from all other files and directories.
     (while files
       (if (string-match "^[0-9]+$" (file-name-nondirectory (car files)))
@@ -648,7 +648,7 @@ If LOW, update the lower bound instead."
     ;; Go through all the other files.
     (while alphs
       (when (and (file-directory-p (car alphs))
-                (not (string-match "^\\.\\.?$"
+                (not (string-match "^\\."
                                    (file-name-nondirectory (car alphs)))))
        ;; We descend directories.
        (gnus-cache-generate-active (car alphs)))