Initial concept

lib/liquid.rb

@@ -75,6 +75,7 @@ require 'liquid/utils'
 require 'liquid/tokenizer'
 require 'liquid/parse_context'
 require 'liquid/partial_cache'
+require 'liquid/usage'
 
 # Load all the tags of the standard library
 #

lib/liquid/usage.rb

@@ -0,0 +1,19 @@
+module Liquid
+  # Usage is used to store
+  class Usage
+    @messages = {}
+    class << self
+      def enable
+        Dir["#{__dir__}/usages/*.rb"].each { |f| require f }
+      end
+
+      def track(message)
+        @messages[message] = true
+      end
+
+      def results
+        @messages
+      end
+    end
+  end
+end

lib/liquid/usages/usage_enabled.rb

@@ -0,0 +1 @@
+Liquid::Usage.track("Usage is enabled")