AddBaseDir returns a new MappingRule that calls rule.Map then prepends dir to the returned path.

AppendExt returns a new MappingRule that calls rule.Map then appends ext to the returned path.

MapToDevNull returns a MappingRule to write no files.

NewFileWriteCache creates and initializes a new ResourceCache that also saves signed exchanges to files on the Store operations.

StripDir returns a new MappingRule that calls rule.Map then eliminates the directory part (anything but the last element) from the returned path.

UsePhysicalURLPath returns a MappingRule to use PhysicalURL.Path.

UseValidityURLPath returns a MappingRule to use ValidityURL.Path.

Config holds the parameters to NewFileWriteCache.

MappingRule defines the rule of mapping Resources into files.