diff --git a/lisp/arc-mode.el b/lisp/arc-mode.el index ef155ee..9833c90 100644 --- a/lisp/arc-mode.el +++ b/lisp/arc-mode.el @@ -147,6 +147,15 @@ A local copy of the archive will be used when updating." "Hook run when an archive member has been extracted." :type 'hook :group 'archive) + +(defcustom archive-visit-single-files nil + "If non-nil, opening an archive with a single file visits that file. + + If this option's value is nil, visiting such archives will + display the archive summary." + :type '(choice (const :tag "Visit the single file" t) + (const :tag "Show the archive summary" nil)) + :group 'archive) ;; ------------------------------ ;; Arc archive configuration @@ -742,7 +751,12 @@ archive. (if (default-value 'enable-multibyte-characters) (set-buffer-multibyte 'to)) (archive-summarize nil) - (setq buffer-read-only t)))) + (setq buffer-read-only t) + (when (and archive-visit-single-files + auto-compression-mode + (= (length archive-files) 1)) + (rename-buffer (concat " " (buffer-name))) + (archive-extract))))) ;; Archive mode is suitable only for specially formatted data. (put 'archive-mode 'mode-class 'special)