lib/yuyi/roll.rb in yuyi-1.0.7 vs lib/yuyi/roll.rb in yuyi-1.0.8

@@ -171,11 +171,11 @@
         end
       end
     end
 
     def pre_install
-      return unless self.class.pre_install
+      return if self.class.installed? || !self.class.pre_install
       say title, :type => :success
       instance_eval(&self.class.pre_install)
     end
 
     def install
@@ -186,10 +186,10 @@
         exit
       end
     end
 
     def post_install
-      return unless self.class.post_install
+      return if self.class.installed? || !self.class.post_install
       say title, :type => :success
       instance_eval(&self.class.post_install)
     end
 
     def uninstall