readFingerprintFile(layout.fileForRead(StateType.ProjectFingerprint)) { host ->
                cacheFingerprintController.run {
                    collectFingerprintForReusedProjects(host, reusedProjects)
                }
            }
        }
        cacheFingerprintController.commitFingerprintTo(layout.fileFor(StateType.BuildFingerprint), layout.fileFor(StateType.ProjectFingerprint))
    }

    private

        val projects = mutableMapOf<Path, ProjectInvalidationState>()
        while (true) {
            when (val input = read()) {
                null -> break
                is ProjectSpecificFingerprint.ProjectFingerprint -> input.run {
                    // An input that is specific to a project. If it is out-of-date, then invalidate that project's values and continue checking values

    ) : Sink(host) {
        override fun write(value: ConfigurationCacheFingerprint, trace: PropertyTrace?) {
            writer.write(ProjectSpecificFingerprint.ProjectFingerprint(project, value), trace)
        }
    }

    override fun onScriptFileResolved(scriptFile: File) {
        fileObserved(scriptFile)
    }
}


internal

     */
    IntermediateModels(true),

    /**
     * Contains the dependency resolution metadata for each project.
     */
    ProjectMetadata(false),
    BuildFingerprint(true),
    ProjectFingerprint(true),

    /**
     * The index file that points to all of these things
     */
    Entry(false)
}


internal
interface ConfigurationCacheStateFile {
    val exists: Boolean