lib/vagrant-notify/action/install_command.rb in vagrant-notify-0.5.3 vs lib/vagrant-notify/action/install_command.rb in vagrant-notify-0.5.4

@@ -9,10 +9,11 @@
         def call(env)
           return if env[:machine].config.notify.enable == false
           
           path = compile_command(env, 'notify-send.erb')
           install_command_on_guest(env, path)
+          check_if_ruby_on_guest(env)
 
           @app.call env
         end
 
         private
@@ -33,9 +34,17 @@
           env[:machine].communicate.upload(source.to_s, '/tmp/notify-send')
           env[:machine].communicate.sudo('mv /usr/bin/{notify-send,notify-send.bkp}; exit 0')
           env[:machine].communicate.sudo('mv /tmp/notify-send /usr/bin/notify-send && chmod +x /usr/bin/notify-send')
           if RUBY_PLATFORM =~ /mswin|msys|mingw|cygwin|bccwin|wince|emc/
             env[:machine].communicate.sudo("sed 's/\r\$//' -i /usr/bin/notify-send") # dos2unix
+          end
+        end
+
+        def check_if_ruby_on_guest(env)
+          ruby_check = ''
+          env[:machine].communicate.sudo("which ruby || true") {|type, data| ruby_check = data }
+          if ruby_check.empty?
+            env[:machine].ui.warn("Ruby is not installed on '#{env[:machine].name}' guest VM! vagrant-notify will not work until a version of Ruby is installed.")
           end
         end
       end
     end
   end