move current_path in to the template context, one less piece of global state

middleman-core/lib/middleman-core/core_extensions/request.rb

@@ -153,20 +153,6 @@ module Middleman
       # Methods to be mixed-in to Middleman::Application
       module InstanceMethods
 
-        # Accessor for current path
-        # @return [String]
-        def current_path
-          Thread.current[:current_path]
-        end
-
-        # Set the current path
-        #
-        # @param [String] path The new current path
-        # @return [void]
-        def current_path=(path)
-          Thread.current[:current_path] = path
-        end
-
         delegate :use, :to => :"self.class"
         delegate :map, :to => :"self.class"
 
@@ -210,7 +196,6 @@ module Middleman
         # @param [Rack::Response] res
         def process_request(env, req, res)
           start_time = Time.now
-          current_path = nil
 
           request_path = URI.decode(env['PATH_INFO'].dup)
           if request_path.respond_to? :force_encoding
@@ -230,17 +215,12 @@ module Middleman
           # If this path is a binary file, send it immediately
           return send_file(resource, env) if resource.binary?
 
-          current_path = resource.destination_path
-
           res['Content-Type'] = resource.content_type || 'text/plain'
 
           begin
             # Write out the contents of the page
-            output = resource.render do
-              self.current_path = current_path
-            end
+            res.write resource.render
 
-            res.write output
             # Valid content is a 200 status
             res.status = 200
           rescue Middleman::TemplateRenderer::TemplateNotFound => e
@@ -249,7 +229,7 @@ module Middleman
           end
 
           # End the request
-          logger.debug "== Finishing Request: #{current_path} (#{(Time.now - start_time).round(2)}s)"
+          logger.debug "== Finishing Request: #{resource.destination_path} (#{(Time.now - start_time).round(2)}s)"
           halt res.finish
         end
 

middleman-core/lib/middleman-core/sitemap.rb

@@ -38,6 +38,9 @@ module Middleman
 
     # Sitemap instance methods
     module InstanceMethods
+      def current_path
+        @current_locs[:current_path]
+      end
 
       # Get the resource object for the current path
       # @return [Middleman::Sitemap::Resource]

middleman-core/lib/middleman-core/sitemap/resource.rb

@@ -135,7 +135,7 @@ module Middleman
           blocks = Array(md[:blocks]).dup
           blocks << block if block_given?
 
-          app.current_path ||= self.destination_path
+          locs[:current_path] ||= self.destination_path
 
           # Certain output file types don't use layouts
           if !opts.has_key?(:layout)

middleman-core/lib/middleman-core/template_context.rb

@@ -4,7 +4,7 @@ require 'middleman-core/template_renderer'
 module Middleman
   class TemplateContext
     attr_reader :app
-    attr_accessor :current_engine, :current_path
+    attr_accessor :current_engine
 
     delegate :config, :logger, :sitemap, :build?, :development?, :data, :extensions, :source_dir, :root, :to => :app