WIP Experimental Cache compilation

lib/curly.rb

@@ -51,4 +51,5 @@ def self.valid?(template, presenter_class)
 require 'curly/compiler'
 require 'curly/presenter'
 require 'curly/template_handler'
+require 'curly/configuration'
 require 'curly/railtie' if defined?(Rails)

lib/curly/configuration.rb

@@ -0,0 +1,27 @@
+module Curly
+  extend self
+
+  def configuration
+    @configuration ||= Configuration.new
+  end
+
+  def configure
+    yield(configuration)
+  end
+
+  def configuration=(c)
+    @configuration = c
+  end
+
+  def reset
+    @configuration = Configuration.new
+  end
+
+  class Configuration
+    attr_accessor :cache_store
+
+    def initialize
+      @cache_store = nil
+    end
+  end
+end

lib/curly/template_handler.rb

@@ -15,7 +15,19 @@ class << self
     # Returns a String containing the Ruby code representing the template.
     def call(template)
       instrument(template) do
-        compile(template)
+        if Curly.configuration.cache_store
+          cache_key = [
+            "CurlyCompilation",
+            template.virtual_path,
+            template.cache_key,
+          ].join("/")
+
+          Curly.configuration.cache_store.fetch(cache_key) do
+            compile(template)
+          end
+        else
+          compile(template)
+        end
       end
     end
 

spec/configuration_spec.rb

@@ -0,0 +1,41 @@
+describe Curly::Configuration do
+  after do
+    Curly.reset
+  end
+
+  describe "#cache_store" do
+    it "defaults to nil" do
+      cache_store = Curly::Configuration.new.cache_store
+
+      expect(cache_store).to be_nil
+    end
+  end
+
+  describe ".configure" do
+    before do
+      Curly.configure do |config|
+        config.cache_store = 'foobar'
+      end
+    end
+
+    it "returns correct value for cache_store" do
+      presenters_namespace = Curly.configuration.cache_store
+
+      expect(presenters_namespace).to eq('foobar')
+    end
+  end
+
+  describe ".reset" do
+    it "resets the configuration to default value" do
+      Curly.configure do |config|
+        config.cache_store = 'foobarbaz'
+      end
+
+      Curly.reset
+
+      cache_store = Curly::Configuration.new.cache_store
+
+      expect(cache_store).to be_nil
+    end
+  end
+end