then:
        file("build/child").mode == 0777
        file("build/child/reference.txt").mode == 0746
        where:
        taskName | unpackMethod
        "Zip"    | "unzipTo"
        "Tar"    | "untarTo"
    }

    @Requires(UnitTestPreconditions.FilePermissions)
    def "file and directory permissions can be overridden in #taskName task"() {
        given:
        createDir('parent') {
            child {

        def tgzCacheEntry = temporaryFolder.file("cache.tgz")
        cacheEntry.copyBytesTo(tgzCacheEntry)
        def extractDir = temporaryFolder.file("extract")
        tgzCacheEntry.untarTo(extractDir)
        tgzCacheEntry.delete()

        def metadata = new Properties()
        extractDir.file("METADATA").withInputStream { input ->
            metadata.load(input)
        }

        def distTarFile = file('build/distributions/mega-app.tar')
        distTarFile.assertIsFile()

        def distTarDir = file('build/untar')
        distTarFile.usingNativeTools().untarTo(distTarDir)
        checkApplicationImage('mega-app', distTarDir.file('mega-app'))
    }

    def "check distribution contents when all defaults used"() {

                archiveFileName = 'test.tar'
            }
'''
        when:
        run 'tar'
        then:
        def expandDir = file('expanded')
        file('build/test.tar').untarTo(expandDir)
        expandDir.assertHasDescendants('dir1/file1.txt', 'file1.txt', 'dir2/file2.txt', 'scripts/dir1', 'scripts/dir2/script.sh')

        expandDir.file('dir1/file1.txt').assertContents(equalTo('[abc]'))
    }

                }
            }

            """
        then:
        succeeds('customDistTar')
        and:
        file('build/distributions/TestProject-custom.tar').usingNativeTools().untarTo(file("untar"))
        file("untar/TestProject-custom/someFile").assertIsFile()
    }

    def "can create distribution with .tar in project name"() {
        when:
        buildFile << """
            apply plugin: 'application'

            return
        }

        def untar = new Untar()
        untar.setSrc(file)
        untar.setDest(target)

        if (file.name.endsWith(".tgz")) {
            def method = new Untar.UntarCompressionMethod()
            method.value = "gzip"
            untar.compression = method
        } else if (file.name.endsWith(".tbz2")) {
            def method = new Untar.UntarCompressionMethod()

            def tgzCacheEntry = temporaryFolder.file("cache.tgz")
            cacheEntry.copyTo(tgzCacheEntry)
            def extractDir = temporaryFolder.file("extract")
            tgzCacheEntry.untarTo(extractDir)
            tgzCacheEntry.delete()

            def metadataFile = extractDir.file("METADATA")
            if (matcher.test(metadataFile)) {
                println "> Corrupting $cacheEntry..."

        assertIsFile();
        new TestFileHelper(this).unzipTo(target, useNativeTools, false);
    }

    public void untarTo(File target) {
        assertIsFile();

        new TestFileHelper(this).untarTo(target, useNativeTools);
    }

    public void copyTo(File target) {
        if (isDirectory()) {
            try {

		return d.r.Read(p)
	}
	return 0, errors.New("reader closed")
}

func (d *disconnectReader) Close() error {
	d.mu.Lock()
	d.r = nil
	d.mu.Unlock()
	return nil
}

func untar(ctx context.Context, r io.Reader, putObject func(reader io.Reader, info os.FileInfo, name string) error, o untarOptions) error {
	bf := bufio.NewReader(r)
	switch f := detect(bf); f {
	case formatGzip:

#
# This file will be fetched as: curl -L https://git.io/getLatestIstio | sh -
# so it should be pure bourne shell, not bash (and not reference other scripts)
#
# The script fetches the latest Istio release candidate and untars it.
# You can pass variables on the command line to download a specific version
# or to override the processor architecture. For example, to download
# Istio 1.6.8 for the x86_64 architecture and linux OS,