Windows: Daemon build is broken

Signed-off-by: John Howard <jhoward@microsoft.com>

chrootarchive/diff_windows.go

@@ -9,23 +9,43 @@ import (
 	"github.com/docker/docker/pkg/archive"
 )
 
+// ApplyLayer parses a diff in the standard layer format from `layer`,
+// and applies it to the directory `dest`. The stream `layer` can only be
+// uncompressed.
+// Returns the size in bytes of the contents of the layer.
+func ApplyLayer(dest string, layer archive.ArchiveReader) (size int64, err error) {
+	return applyLayerHandler(dest, layer, true)
+}
+
+// ApplyUncompressedLayer parses a diff in the standard layer format from
+// `layer`, and applies it to the directory `dest`. The stream `layer`
+// can only be uncompressed.
+// Returns the size in bytes of the contents of the layer.
+func ApplyUncompressedLayer(dest string, layer archive.ArchiveReader) (int64, error) {
+	return applyLayerHandler(dest, layer, false)
+}
+
 // ApplyLayer parses a diff in the standard layer format from `layer`, and
 // applies it to the directory `dest`. Returns the size in bytes of the
 // contents of the layer.
-func ApplyLayer(dest string, layer archive.ArchiveReader) (size int64, err error) {
+func applyLayerHandler(dest string, layer archive.ArchiveReader, decompress bool) (size int64, err error) {
 	dest = filepath.Clean(dest)
+	if decompress {
 		decompressed, err := archive.DecompressStream(layer)
 		if err != nil {
 			return 0, err
 		}
 		defer decompressed.Close()
 
+		layer = decompressed
+	}
+
 	tmpDir, err := ioutil.TempDir(os.Getenv("temp"), "temp-docker-extract")
 	if err != nil {
 		return 0, fmt.Errorf("ApplyLayer failed to create temp-docker-extract under %s. %s", dest, err)
 	}
 
-	s, err := archive.UnpackLayer(dest, decompressed)
+	s, err := archive.UnpackLayer(dest, layer)
 	os.RemoveAll(tmpDir)
 	if err != nil {
 		return 0, fmt.Errorf("ApplyLayer %s failed UnpackLayer to %s", err, dest)