$ git diff --cached
diff --git a/foo.rb b/foo.rb
index 33c40b2..f8879cf 100644
--- a/foo.rb
+++ b/foo.rb
@@ -1,10 +1,12 @@
 class Foo
   def bar
     puts 'BAR'
+    $logger.log 'Foo#bar'
   end

   def baz
     puts 'BAZ'
+    $logger.log 'Foo#baz'
   end

  private