Make last-resort backup file in .emacs.d (Bug#6953).

* lisp/files.el (backup-buffer): Make last-resort backup file in
.emacs.d.

* lisp/subr.el (locate-user-emacs-file): If .emacs.d does not exist,
make it with permission 700.

* doc/emacs/files.texi (Backup Names): Document the new location of the
last-resort backup file.

diff --git a/doc/emacs/ChangeLog b/doc/emacs/ChangeLog
index 4825f08979f4876be3514dd9483213c0d6865270..d1e5beb7384b69ae39d14403193db98a734bab29 100644 (file)
--- a/doc/emacs/ChangeLog
+++ b/doc/emacs/ChangeLog
@@ -1,3 +1,8 @@
+2011-01-15  Chong Yidong  <cyd@stupidchicken.com>
+
+       * files.texi (Backup Names): Document the new location of the
+       last-resort backup file.
+
 2011-01-08  Chong Yidong  <cyd@stupidchicken.com>
 
        * files.texi (File Aliases): Move directory-abbrev-alist doc from Lisp

diff --git a/doc/emacs/files.texi b/doc/emacs/files.texi
index 530c2bb94f7fb5c8b1355ee61dd994dc8679b55c..b16549450e45bf4e901bcc018e41cc2e8148da18 100644 (file)
--- a/doc/emacs/files.texi
+++ b/doc/emacs/files.texi
@@ -566,10 +566,10 @@ another from the newly saved contents if you save again.
 appending @samp{~} to the file name being edited; thus, the backup
 file for @file{eval.c} would be @file{eval.c~}.
 
-  If access control stops Emacs from writing backup files under the usual
-names, it writes the backup file as @file{%backup%~} in your home
-directory.  Only one such file can exist, so only the most recently
-made such backup is available.
+  If access control stops Emacs from writing backup files under the
+usual names, it writes the backup file as @file{~/.emacs.d/%backup%~}.
+Only one such file can exist, so only the most recently made such
+backup is available.
 
   Emacs can also make @dfn{numbered backup files}.  Numbered backup
 file names contain @samp{.~}, the number, and another @samp{~} after

diff --git a/etc/NEWS b/etc/NEWS
index 8a673d194438322bd42bbd2229bc5c62dab6c52b..34e3adea48146672302bea15e5440d2d3e8520bb 100644 (file)
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -26,6 +26,10 @@ used on x86-64 and s390x GNU/Linux architectures.
 
 * Changes in Emacs 23.3
 
++++
+** The last-resort backup file `%backup%~' is now written to
+`user-emacs-directory', instead of the user's home directory.
+
 \f
 * Editing Changes in Emacs 23.3
 

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 0f6138bf698d17330fa2be4d2fe8e3a511aa10c1..0ff810a1230010e923b65ee4279b5e559efccf08 100644 (file)
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,11 @@
+2011-01-15  Mark Diekhans  <markd@soe.ucsc.edu>
+
+       * files.el (backup-buffer): Make last-resort backup file in
+       .emacs.d (Bug#6953).
+
+       * subr.el (locate-user-emacs-file): If .emacs.d does not exist,
+       make it with permission 700.
+
 2011-01-14  Kenichi Handa  <handa@m17n.org>
 
        * mail/rmailmm.el (rmail-mime-insert-header): Set

diff --git a/lisp/files.el b/lisp/files.el
index ab027b507f609fc185323607839b5a708d2f7128..92029b470ffafe716aec60856218bd9135b1fcb2 100644 (file)
--- a/lisp/files.el
+++ b/lisp/files.el
@@ -3683,10 +3683,9 @@ BACKUPNAME is the backup file name, which is the old file renamed."
                        (rename-file real-file-name backupname t)
                        (setq setmodes (cons modes backupname)))
                    (file-error
-                    ;; If trouble writing the backup, write it in ~.
-                    (setq backupname (expand-file-name
-                                      (convert-standard-filename
-                                       "~/%backup%~")))
+                    ;; If trouble writing the backup, write it in
+                    ;; .emacs.d/%backup%.
+                    (setq backupname (locate-user-emacs-file "%backup%~"))
                     (message "Cannot write backup file; backing up in %s"
                              backupname)
                     (sleep-for 1)

diff --git a/lisp/subr.el b/lisp/subr.el
index 7ddabbc0e90afb3ec65aa4d1b58322b592759ef3..2a0dee6933899e1aaa35e4273055b2630da7389f 100644 (file)
--- a/lisp/subr.el
+++ b/lisp/subr.el
@@ -2340,11 +2340,16 @@ directory if it does not exist."
        ;; unless we're in batch mode or dumping Emacs
        (or noninteractive
           purify-flag
-          (file-accessible-directory-p (directory-file-name user-emacs-directory))
-          (make-directory user-emacs-directory))
+          (file-accessible-directory-p
+           (directory-file-name user-emacs-directory))
+          (let ((umask (default-file-modes)))
+            (unwind-protect
+                (progn
+                  (set-default-file-modes ?\700)
+                  (make-directory user-emacs-directory))
+              (set-default-file-modes umask))))
        (abbreviate-file-name
         (expand-file-name new-name user-emacs-directory))))))
-
 \f
 ;;;; Misc. useful functions.