}
        return rootDirs
    }

    /**
     * See [ConfigurationCacheState.writeRootBuildState].
     */
    internal
    fun writeRootBuildStateTo(stateFile: ConfigurationCacheStateFile) =
        writeConfigurationCacheState(stateFile) { cacheState ->
            cacheState.run {
                writeRootBuildState(host.currentBuild)
            }
        }

    internal

) {
    /**
     * Writes the state for the whole build starting from the given root [build] and returns the set
     * of stored included build directories.
     */
    suspend fun DefaultWriteContext.writeRootBuildState(build: VintageGradleBuild) {
        writeBuildInvocationId()
        writeRootBuild(build).also {
            writeInt(0x1ecac8e)
        }
    }

    suspend fun DefaultReadContext.readRootBuildState(