# frozen_string_literal: true module Hanami module Assets # This error is raised when the application starts but can't be load the # manifest file. # # @since 0.1.0 # @api private class MissingManifestFileError < Error def initialize(path) super("Can't read manifest: #{path}") end end # This error is raised when an asset is referenced from the DOM, but it's # not present in the manifest # # @since 0.1.0 # @api private class MissingManifestAssetError < Error def initialize(asset, manifest_path) super("Can't find asset `#{asset}' in manifest (#{manifest_path})") end end # Configuration settings # # @since 0.1.0 # @api private module Config # Default value for configuration's manifest. # # It indicates that the manifest wasn't loaded yet. # # At the load time, this should be replaced by an instance of # Hanami::Assets::Config::Manifest. # # If for some reason that won't happen, the instance of this class is # still referenced by the configuration and all the method invocations # will raise a Hanami::Assets::MissingManifestFileError. # # @since 0.1.0 # @api private # # @see Hanami::Assets::Configuration#manifest # @see Hanami::Assets::Configuration#manifest_path # @see Hanami::Assets::Configuration#fingerprint class NullManifest < Utils::BasicObject # Return a new instance # # @param configuration [Hanami::Assets::Configuration] # # @return [Hanami::Assets::Config::NullManifest] a new instance # # @since 0.1.0 # @api private def initialize(configuration) @configuration = configuration end # @raise [Hanami::Assets::MissingManifestFileError] # # @since 0.1.0 # @api private def method_missing(*) # rubocop:disable Style/MethodMissingSuper ::Kernel.raise( ::Hanami::Assets::MissingManifestFileError.new(@configuration.manifest_path) ) end # @return [FalseClass] returns false # # @since 1.1.0 # @api private def respond_to_missing?(*) false end end # Manifest file # # @since 0.1.0 # @api private class Manifest # @since 0.4.0 # @api private TARGET = "target" # @since 0.3.0 # @api private SUBRESOURCE_INTEGRITY = "sri" # Return a new instance # # @param assets [Hash] the content of the manifest # @param manifest_path [Pathname] the path to the manifest # # @return [Hanami::Assets::Config::Manifest] a new instance # # @since 0.1.0 # @api private # # @see Hanami::Assets::Configuration#manifest # @see Hanami::Assets::Configuration#manifest_path def initialize(assets, manifest_path) @assets = assets @manifest_path = manifest_path end # Resolve the given asset into a fingerprinted path # # For a given path /assets/application.js it will return # /assets/application-28a6b886de2372ee3922fcaf3f78f2d8.js # # @param asset [#to_s] the relative asset path # # @return [String] the fingerprinted path # # @raise [Hanami::Assets::MissingManifestAssetError] when the asset can't be # found in manifest def resolve(asset) @assets.fetch(asset.to_s) do raise Hanami::Assets::MissingManifestAssetError.new(asset, @manifest_path) end end # @since 0.3.0 # @api private def target(path) resolve(path).fetch(TARGET) end # @since 0.3.0 # @api private def subresource_integrity_values(path) resolve(path).fetch(SUBRESOURCE_INTEGRITY) end end end end end