From 7802030a53db7e2e41ec1075c8e97f11b9a22958 Mon Sep 17 00:00:00 2001
From: Arfon Smith <arfon@github.com>
Date: Wed, 9 Jul 2014 09:48:34 -0500
Subject: [PATCH] Counting changes

---
 Rakefile | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/Rakefile b/Rakefile
index 76d4c292..1c06f072 100644
--- a/Rakefile
+++ b/Rakefile
@@ -112,7 +112,22 @@ namespace :benchmark do
     compare_classifications = JSON.parse(File.read(compare_classifications_file))
 
     puts "Changes between #{reference}...#{compare}"
-    puts reference_classifications.deep_diff(compare_classifications)
+    changes = reference_classifications.deep_diff(compare_classifications)
+
+    if changes.any?
+      changes.each do |lang, files|
+        previous_count = reference_classifications[lang].size
+        summary = changes[lang].inject(Hash.new(0)) do |result, (key, val)|
+          new_lang = val.last
+          result[new_lang] += 1
+          result
+        end
+      end
+
+      puts summary
+    else
+      puts "No changes"
+    end
   end
 end