# frozen_string_literal: true module Nanoc module Int # 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 include Nanoc::Core::ContractsSupport contract C::KeywordArgs[config: Nanoc::Core::Configuration] => C::Any def initialize(config:) super(Nanoc::Int::Store.tmp_path_for(config: config, store_name: 'compiled_content'), 2) @cache = {} end contract Nanoc::Core::ItemRep => C::Maybe[C::HashOf[Symbol => Nanoc::Core::Content]] # Returns the cached compiled content for the given item representation. # # This cached compiled content is a hash where the keys are the snapshot # names. and the values the compiled content at the given snapshot. def [](rep) item_cache = @cache[rep.item.identifier] || {} item_cache[rep.name] end contract Nanoc::Core::ItemRep, C::HashOf[Symbol => Nanoc::Core::Content] => C::HashOf[Symbol => Nanoc::Core::Content] # Sets the compiled content for the given representation. # # This cached compiled content is a hash where the keys are the snapshot # names. and the values the compiled content at the given snapshot. def []=(rep, content) @cache[rep.item.identifier] ||= {} @cache[rep.item.identifier][rep.name] = content end def prune(items:) item_identifiers = Set.new(items.map(&:identifier)) @cache.keys.each do |key| @cache.delete(key) unless item_identifiers.include?(key) end end protected def data @cache end def data=(new_data) @cache = {} new_data.each_pair do |item_identifier, content_per_rep| @cache[item_identifier] ||= content_per_rep end end end end end