import java.nio.file.Files
import java.nio.file.StandardCopyOption

@Requires(UnitTestPreconditions.Symlinks)
class IncrementalBuildSymlinkHandlingIntegrationTest extends AbstractIntegrationSpec implements ValidationMessageChecker {
    def setup() {
        expectReindentedValidationMessage()

        // Must run on isolated daemons so that symlink data can be properly cleaned up between builds
        executer.requireDaemon()

			}
		}
	}

	if roots.len() > 0 || firstErr == nil {
		return roots, nil
	}

	return nil, firstErr
}

// readUniqueDirectoryEntries is like os.ReadDir but omits
// symlinks that point within the directory.
func readUniqueDirectoryEntries(dir string) ([]fs.DirEntry, error) {
	files, err := os.ReadDir(dir)
	if err != nil {
		return nil, err
	}
	uniq := files[:0]
	for _, f := range files {

        strategy << allFingerprintingStrategies
        strategyName = getStrategyName(strategy)
    }

    def "non-root broken symlink is fingerprinted as missing for #strategyName"() {
        given:
        def root = file('root')
        root.mkdirs()
        def brokenSymlink = root.file('broken-symlink')
        brokenSymlink.createLink(file('non-existing'))

        when:

		if info.IsDir() {
			return os.MkdirAll(dstPath, perm|0200)
		}

		// If we can use a hard link, do that instead of copying bytes.
		// Go builds don't like symlinks in some cases, such as go:embed.
		if err := os.Link(srcPath, dstPath); err == nil {
			return nil
		}

		// Otherwise, copy the bytes.
		src, err := os.Open(srcPath)
		if err != nil {
			return err
		}

        directories*.source.unique() == ["Common Linux Locations"]
    }

    @Requires(UnitTestPreconditions.Symlinks)
    def "supplies installations with symlinked candidate"() {
        given:
        def otherLocation = temporaryFolder.createDir("other")
        candidates.createDir("14-real")
        candidates.file("symlinked").createLink(otherLocation.canonicalFile)

USER_CONFIG=
if [[ "$(id -u)" == "0" ]]; then
  USER_CONFIG="  uid = 0"$'\n'"  gid = 0"
fi

cat <<EOF >"${CONFFILE}"
pid file = ${PIDFILE}
use chroot = no
log file = /dev/stdout
reverse lookup = no
munge symlinks = no
port = 8730
[k8s]
  numeric ids = true
  $USER_CONFIG
  hosts deny = *
  hosts allow = ${ALLOW} ${ALLOW_HOST-}
  auth users = k8s
  secrets file = ${SECRETS}
  read only = false
  path = ${VOLUME}

		if err := f.Truncate(0); err != nil {
			// The documentation for os.O_TRUNC says “if possible, truncate file when
			// opened”, but doesn't define “possible” (golang.org/issue/28699).
			// We'll treat regular files (and symlinks to regular files) as “possible”
			// and ignore errors for the rest.
			if fi, statErr := f.Stat(); statErr != nil || fi.Mode().IsRegular() {
				filelock.Unlock(f)
				f.Close()
				return nil, err
			}
		}
	}

        def metadata2 = detector.getMetadata(testLocation("jdk"))

        then:
        metadata1.is(metadata2)
    }

    @Requires(UnitTestPreconditions.Symlinks)
    def "cached probe are not affected by symlink changes"() {
        given:
        NativeServicesTestFixture.initialize()
        def metaDataDetector = new DefaultJvmMetadataDetector(
            TestFiles.execHandleFactory(),

    }

    @Requires(UnitTestPreconditions.Symlinks)
    def "handles java home that is a symlink"() {
        given:
        def javaHome = Jvm.current().javaHome
        def javaLink = file("javaLink")
        javaLink.createLink(javaHome)
        file("tmp").createDir().deleteDir()

// encoded representation. It returns ErrNotIndexed if the module can't
// be indexed because it contains symlinks.
func indexModule(modroot string) ([]byte, error) {
	fsys.Trace("indexModule", modroot)
	var packages []*rawPackage

	// If the root itself is a symlink to a directory,
	// we want to follow it (see https://go.dev/issue/50807).
	// Add a trailing separator to force that to happen.