Use memcached for new index response

lib/bundler_api/cache.rb

@@ -47,6 +47,8 @@ def purge_gem(name)
 
     def purge_memory_cache(name)
       memcached_client.delete "deps/v1/#{name}"
+      memcached_client.delete "info/#{name}"
+      memcached_client.delete "names"
     end
 
     def cdn_client

lib/bundler_api/web.rb

@@ -160,7 +160,7 @@ def json_payload(payload)
   get "/names" do
     status 404 unless NEW_INDEX_ENABLED
     etag_response_for("names") do
-     CompactIndex.names(@gem_info.names)
+      @dalli_client.fetch('names') { CompactIndex.names(@gem_info.names) }
     end
   end
 
@@ -176,7 +176,7 @@ def json_payload(payload)
   get "/info/:name" do
     status 404 unless NEW_INDEX_ENABLED
     etag_response_for(params[:name]) do
-      @gem_info.info(params[:name])
+      @dalli_client.fetch("info/#{params[:name]}") { @gem_info.info(params[:name]) }
     end
   end
 

spec/cache_spec.rb

@@ -73,11 +73,25 @@
     let(:name) { 'bundler-1.0.0' }
     subject { cache.purge_memory_cache(name) }
 
-    it 'purge memcached gem' do
+    it 'purge memcached gem api' do
       cache.memcached_client.set("deps/v1/#{name}", "omg!")
       expect(cache.memcached_client.get("deps/v1/#{name}")).to_not be_nil
       subject
       expect(cache.memcached_client.get("deps/v1/#{name}")).to be_nil
     end
+
+    it 'purge memcached gem info' do
+      cache.memcached_client.set("info/#{name}", "omg!")
+      expect(cache.memcached_client.get("info/#{name}")).to_not be_nil
+      subject
+      expect(cache.memcached_client.get("info/#{name}")).to be_nil
+    end
+
+    it 'purge memcached gem names' do
+      cache.memcached_client.set("names", "omg!")
+      expect(cache.memcached_client.get("names")).to_not be_nil
+      subject
+      expect(cache.memcached_client.get("names")).to be_nil
+    end
   end
 end