import org.gradle.testkit.runner.GradleRunner
import org.gradle.testkit.runner.UnexpectedBuildFailure
import org.hamcrest.CoreMatchers
import org.hamcrest.MatcherAssert.assertThat
import org.junit.Assert.assertFalse
import org.junit.Assert.assertTrue
import org.junit.Rule
import org.junit.rules.TemporaryFolder
import java.io.File
import java.nio.file.Files


abstract class AbstractBinaryCompatibilityTest {

    @get:Rule

        if (OperatingSystem.current().isWindows) {
            commandLine = listOf("cmd", "/c") + commandLine
        }
    }
    return execOutput.result.zip(execOutput.standardOutput.asText) { result, outputText ->
        if (result.exitValue == 0) outputText.trim()
        else "<unknown>" // It's a source distribution, we don't know.
    }
}


// pre-test/master/queue/alice/feature -> master

 * limitations under the License.
 */

import java.nio.charset.Charset

tasks.register("verifyIsProductionBuildEnvironment") {
    doLast {
        val systemCharset = Charset.defaultCharset().name()
        assert(systemCharset == "UTF-8") {
            "Platform encoding must be UTF-8. Is currently $systemCharset. Set -Dfile.encoding=UTF-8"
        }
    }

 * Returns the trimmed contents of the file at the given [path] after
 * marking the file as a build logic input.
 */
fun Project.trimmedContentsOfFile(path: String): String =
    providers.fileContents(repoRoot().file(path)).asText.get().trim()

// TODO Simplify the buildTimestamp() calculation if possible
fun Project.buildTimestamp(): Provider<String> =
    providers.of(BuildTimestampValueSource::class) {
        parameters {

        val subprojectRoots = platformsFolder.asFile.listFiles(File::isDirectory).plus(subprojectsFolder.asFile).plus(testingFolder.asFile)
        return subprojectRoots.map { it.listFiles(File::isDirectory).asList() }.flatten()
    }

    private
    fun generateSubprojects(): List<GradleSubproject> {
        return generateSubprojectsDirectories()
            .filter {
                File(it, "build.gradle.kts").exists() ||

        val subprojectRoots = File("../platforms").listFiles(File::isDirectory).plus(File("../subprojects"))
        val subProjectFolders = subprojectRoots.map { it.listFiles(File::isDirectory).asList() }.flatten().filter { dir ->
            // filter out the directories that have only a `build` subdirectory - this usually happens after branch switching

/**
 * Test Fixtures Plugin.
 *
 * Configures the Project as a test fixtures producer if `src/testFixtures` is a directory:
 * - adds a new `testFixtures` source set which should contain utilities/fixtures to assist in unit testing
 *   classes from the main source set,
 * - the test fixtures are automatically made available to the test classpath.
 *

        }
    }
}

def apiChangesJsonFile = layout.projectDirectory.file("src/changes/accepted-public-api-changes.json")
def acceptedViolations = AcceptedApiChanges.parse(providers.fileContents(apiChangesJsonFile).asText.get())
def compatibilityBaselineVersion = moduleIdentity.releasedVersions.get().mostRecentRelease.version

def ARTIFACT_TYPE = Attribute.of('artifactType', String)
def RUNTIME_ATTRIBUTE = objects.named(Usage, Usage.JAVA_RUNTIME)