Don't automatically load hooks

lib/liquid.rb

@@ -41,10 +41,6 @@ module Liquid
 
   singleton_class.send(:attr_accessor, :cache_classes)
   self.cache_classes = true
-
-  def self.load_profiler_hooks
-    require 'liquid/profiler/hooks'
-  end
 end
 
 require "liquid/version"

lib/liquid/profiler.rb

@@ -71,7 +71,13 @@ module Liquid
     end
 
     def self.hooks_loaded
-      false
+      @hooks_loaded
+    end
+
+    def self.load_hooks
+      return if @hooks_loaded
+      require 'liquid/profiler/hooks'
+      @hooks_loaded = true
     end
 
     def self.profile_token_render(token)

lib/liquid/profiler/hooks.rb

@@ -1,10 +1,4 @@
 module Liquid
-  class Profiler
-    def self.hooks_loaded
-      true
-    end
-  end
-
   class BlockBody
     def render_token_with_profiling(token, context)
       Profiler.profile_token_render(token) do

lib/liquid/template.rb

@@ -250,7 +250,7 @@ module Liquid
 
     def with_profiling
       if @profiling && !@options[:included]
-        Liquid.load_profiler_hooks unless Profiler.hooks_loaded
+        raise "Profiler hooks not loaded, call Liquid::Profiler.load_hooks first" unless Profiler.hooks_loaded
 
         @profiler = Profiler.new
         @profiler.start

test/test_helper.rb

@@ -12,6 +12,7 @@ if env_mode = ENV['LIQUID_PARSER_MODE']
   mode = env_mode.to_sym
 end
 Liquid::Template.error_mode = mode
+Liquid::Profiler.load_hooks
 
 if Minitest.const_defined?('Test')
   # We're on Minitest 5+. Nothing to do here.