development.rb in sewing_kit-0.91.0

- old
+ new

@@ -8,32 +8,48 @@
         def initialize
           super
           @metadata_path = nil
         end
 
+        def asset_dependencies(entrypoint_name, _target)
+          current_metadata = metadata
+          if current_metadata.key?('development')
+            current_metadata['development']['hangTight']
+          else
+            current_metadata['entrypoints'][entrypoint_name]
+          end
+        end
+
         def clear_cache!
           super
           @metadata_path = nil
         end
 
+        def manifest
+          raise OnlyUseInProductionError
+        end
+
         def metadata
           load_metadata
         end
 
         def load_metadata
           begin
-            return load_metadata_from_fs(@metadata_path) if @metadata_path
+            if @metadata_path
+              result = load_metadata_from_fs(@metadata_path)
+              return normalize_metadata(result)
+            end
           rescue => e
             Rails.logger.warn "[sewing_kit] could not read manifest from #{@metadata_path}; falling back to node.  #{e}"
             @metadata_path = nil
           end
 
           result = SewingKit::Webpack::Manifest::Base.load_metadata_from_node
-          raise LegacyManifestError, result unless result['entrypoints'] || result['development']
 
-          @metadata_path = result && result['path']
-          result
+          metadata = normalize_metadata(result)
+          @metadata_path = metadata && metadata['path']
+          metadata
         end
 
         def load_metadata_from_fs(path)
           begin
             json_str = File.read(path)
@@ -48,11 +64,26 @@
           end
         end
 
         protected
 
+        def normalize_metadata(maybe_array_metadata)
+          if maybe_array_metadata.is_a?(Array)
+            maybe_array_metadata.last
+          else
+            maybe_array_metadata
+          end
+        end
+
         def mode
           'development'
+        end
+      end
+
+      class OnlyUseInProductionError < StandardError
+        def initialize
+          super "The SewingKit::Webpack::Manifest#manifest is intended "\
+          "for deploying assets to a CDN. Do not use it in development."
         end
       end
     end
   end
 end