System.getenv("REPO_MIRROR_URLS")?.ifBlank { null }?.split(',')?.associate { nameToUrl ->
            val (name, url) = nameToUrl.split(':', limit = 2)
            name to url
        } ?: emptyMap()

                    .map { dirPath.relativize(it).toString() }
                    .collect(Collectors.toList())
            }
        }?.filter {
            it.value.isNotEmpty()
        } ?: emptyMap()

    /**
     * Returns any temporary directories used to extract resources from jars.
     *

        }
        return (
            (if (distributionDir != null) mapOf("integTest.gradleHomeDir" to distributionDir) else emptyMap()) + mapOf(
                "integTest.gradleUserHomeDir" to absolutePathOf(gradleUserHomeDir.dir(distributionName)),
                "integTest.samplesdir" to absolutePathOf(gradleSnippetsDir),

        val classGraph = classGraph()

        val jarUri = URI.create("jar:${jarFile.toPath().toUri()}")
        FileSystems.newFileSystem(jarUri, emptyMap<String, Any>()).use { jarFileSystem ->
            jarFileSystem.rootDirectories.forEach {
                visitClassDirectory(it, classGraph, classesDir, manifestFile.toPath(), buildReceipt.toPath())
            }
        }

    )
}

fun determineScenarioTestDurations(os: Os, performanceTestDurations: OperatingSystemToTestProjectPerformanceTestDurations): Map<String, List<PerformanceTestDuration>> = performanceTestDurations.getOrDefault(os, emptyMap())

fun determineScenariosFor(performanceTestSpec: PerformanceTestSpec, performanceTestConfigurations: List<PerformanceTestConfiguration>): List<PerformanceScenario> {