A sample Guardfile More info at github.com/guard/guard#readme

Uncomment and set this to only include directories you want to watch

directories %w(app lib config test spec features) \

.select{|d| Dir.exist?(d) ? d : UI.warning("Directory #{d} does not exist")}
Note: if you are using the `directories` clause above and you are not
watching the project directory ('.'), then you will want to move
the Guardfile to a watched dir and symlink it back, e.g.

$ mkdir config
$ mv Guardfile config/
$ ln -s config/Guardfile .

and, you'll have to watch “config/Guardfile” instead of “Guardfile”