lib/nanoc/base/repos/compiled_content_cache.rb in nanoc-4.4.2 vs lib/nanoc/base/repos/compiled_content_cache.rb in nanoc-4.4.3

@@ -2,13 +2,14 @@
   # Represents a cache than can be used to store already compiled content,
   # to prevent it from being needlessly recompiled.
   #
   # @api private
   class CompiledContentCache < ::Nanoc::Int::Store
-    def initialize(env_name: nil)
+    def initialize(env_name: nil, items:)
       super(Nanoc::Int::Store.tmp_path_for(env_name: env_name, store_name: 'compiled_content'), 2)
 
+      @items = items
       @cache = {}
     end
 
     # Returns the cached compiled content for the given item
     # representation. This cached compiled content is a hash where the keys
@@ -43,9 +44,17 @@
     def data
       @cache
     end
 
     def data=(new_data)
-      @cache = new_data
+      @cache = {}
+
+      item_identifiers = Set.new(@items.map(&:identifier))
+
+      new_data.each_pair do |item_identifier, content_per_rep|
+        if item_identifiers.include?(item_identifier)
+          @cache[item_identifier] ||= content_per_rep
+        end
+      end
     end
   end
 end