+(defun find-user-init-directory-init-file (&optional init-directory)
+ "Determine the user's init file if in the init directory."
+ (let ((init-directory (or init-directory user-init-directory)))
+ (catch 'found
+ (dolist (file user-init-file-base-list)
+ (let ((expanded (expand-file-name file init-directory)))
+ (when (file-readable-p expanded)
+ (throw 'found expanded)))))))
+
+(defun find-user-home-directory-init-file (&optional home-directory)
+ "Determine the user's init file if in the home directory."
+ (let ((home-directory (or home-directory "~")))
+ (catch 'found
+ (dolist (file user-home-init-file-base-list)
+ (let ((expanded (expand-file-name file home-directory)))
+ (when (file-readable-p expanded)
+ (throw 'found expanded))))
+ nil)))
+
+(defun find-user-init-file (&optional init-directory home-directory)
+ "Determine the user's init file."
+ (if load-home-init-file
+ (find-user-home-directory-init-file home-directory)
+ (or (find-user-init-directory-init-file init-directory)
+ (find-user-home-directory-init-file home-directory))))
+
+(defun maybe-migrate-user-init-file ()
+ "Ask user if she wants to migrate the init file(s) to new location."
+ (if (and (not load-home-init-file)
+ (not (find-user-init-directory-init-file user-init-directory))
+ (stringp user-init-file)
+ (file-readable-p user-init-file))
+ (if (with-output-to-temp-buffer (help-buffer-name nil)
+ (progn
+ (princ "XEmacs recommends that the initialization code in
+")
+ (princ user-init-file)
+ (princ "
+be migrated to the ")
+ (princ user-init-directory)
+ (princ " directory. XEmacs can
+perform the migration automatically.
+
+After the migration, init.el/init.elc holds user-written
+initialization code. Moreover the customize settings will be in
+custom.el.
+
+If you choose not to do this now, XEmacs will not ask you this
+question in the future. However, you can still make XEmacs
+perform the migration at any time with M-x migrate-user-init-file.")
+ (show-temp-buffer-in-current-frame standard-output)
+ (yes-or-no-p-minibuf (concat "Migrate init file to "
+ user-init-directory
+ "? "))))
+ (migrate-user-init-file)
+ (customize-save-variable 'load-home-init-file t))))
+
+(defun migrate-user-init-file ()
+ "Migrate the init file from the home directory."
+ (interactive)
+ (if (not (file-exists-p user-init-directory))
+ (progn
+ (message "Creating %s directory..." user-init-directory)
+ (make-directory user-init-directory)))
+ (message "Migrating custom file...")
+ (custom-migrate-custom-file (make-custom-file-name user-init-file
+ 'force-new))
+ (message "Moving init file...")
+ (rename-file user-init-file
+ (expand-file-name user-init-file-base
+ user-init-directory))
+ (message "Migration done."))
+