lib/guard/notifiers/tmux.rb in guard-2.2.2 vs lib/guard/notifiers/tmux.rb in guard-2.2.3

@@ -132,11 +132,15 @@
       def display_title(type, title, message, opts = {})
         title_format   = opts.fetch("#{ type }_title_format".to_sym, opts.fetch(:default_title_format, DEFAULTS[:default_title_format]))
         teaser_message = message.split("\n").first
         display_title  = title_format % [title, teaser_message]
 
-        _run_client "set-option -q set-titles-string '#{ display_title }'"
+        if _tmux_version >= 1.7
+          _run_client "set-option -q set-titles-string '#{ display_title }'"
+        else
+          _run_client "set-option set-titles-string '#{ display_title }'"
+        end
       end
 
       # Displays a message in the status bar of tmux.
       #
       # @param [String] type the notification type. Either 'success',
@@ -252,9 +256,13 @@
           'status-right-fg' => nil,
           'message-bg'      => nil,
           'message-fg'      => nil,
           'display-time'    => nil
         }
+      end
+
+      def _tmux_version
+        @tmux_version ||= `tmux -V`.chomp.gsub(/[^0-9.]/,'').to_f
       end
 
     end
 
   end