lib/hoc.rb in hoc-0.1 vs lib/hoc.rb in hoc-0.2

@@ -38,9 +38,13 @@
       @format = format
     end
 
     # Generate report.
     def report
-      Git.new(@dir).hits.map { |h| h.total }.inject(:+)
+      if File.exist?(File.join(@dir, '.git'))
+        Git.new(@dir).hits.map { |h| h.total }.inject(:+)
+      else
+        fail 'only Git repositories supported now'
+      end
     end
   end
 end