Include asset host in public path cache key. Clear cache between asset tag tests.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@7617 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

actionpack/lib/action_view/base.rb

@@ -223,6 +223,10 @@ module ActionView #:nodoc:
     # Maps template paths / extensions to 
     @@cached_base_paths = {}
 
+    # Cache public asset paths
+    cattr_reader :computed_public_paths
+    @@computed_public_paths = {}
+
     @@templates_requiring_setup = Set.new(%w(builder rxml rjs))
 
     # Order of template handers checked by #file_exists? depending on the current #template_format

actionpack/lib/action_view/helpers/asset_tag_helper.rb

@@ -384,8 +384,12 @@ module ActionView
         # a single or wildcarded asset host, if configured, with the correct
         # request protocol.
         def compute_public_path(source, dir, ext = nil, include_host = true)
-          @@computed_public_paths ||= {}
-          @@computed_public_paths["#{@controller.request.protocol}#{@controller.request.relative_url_root}#{dir}#{source}#{ext}#{include_host}"] ||=
+          cache_key = [ @controller.request.protocol,
+                        ActionController::Base.asset_host,
+                        @controller.request.relative_url_root,
+                        dir, source, ext, include_host ].join
+
+          ActionView::Base.computed_public_paths[cache_key] ||=
             begin
               source += ".#{ext}" if File.extname(source).blank? && ext
 
@@ -426,15 +430,15 @@ module ActionView
           if asset_id = ENV["RAILS_ASSET_ID"]
             asset_id
           else
-            @@asset_id_cache[source] ||=
-              if file_exist?(path = File.join(ASSETS_DIR, source))
-                File.mtime(path).to_i.to_s
-              else
-                ''
-              end
+            path = File.join(ASSETS_DIR, source)
+
+            if File.exist?(path)
+              File.mtime(path).to_i.to_s
+            else
+              ''
+            end
           end
         end
-        @@asset_id_cache = {}
 
         # Break out the asset path rewrite so you wish to put the asset id
         # someplace other than the query string.

actionpack/test/template/asset_tag_helper_test.rb

@@ -33,11 +33,14 @@ class AssetTagHelperTest < Test::Unit::TestCase
 
     @request = Class.new do
       def relative_url_root() "" end
+      def protocol() 'http://' end
     end.new
 
     @controller.request = @request
 
     ActionView::Helpers::AssetTagHelper::reset_javascript_include_default
+
+    ActionView::Base.computed_public_paths.clear
   end
 
   def teardown
@@ -128,6 +131,8 @@ class AssetTagHelperTest < Test::Unit::TestCase
     ENV["RAILS_ASSET_ID"] = ""
     JavascriptIncludeToTag.each { |method, tag| assert_dom_equal(tag, eval(method)) }
 
+    ActionView::Base.computed_public_paths.clear
+
     ENV["RAILS_ASSET_ID"] = "1"
     assert_dom_equal(%(<script src="/javascripts/prototype.js?1" type="text/javascript"></script>\n<script src="/javascripts/effects.js?1" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js?1" type="text/javascript"></script>\n<script src="/javascripts/controls.js?1" type="text/javascript"></script>\n<script src="/javascripts/application.js?1" type="text/javascript"></script>), javascript_include_tag(:defaults))
   end