Merge pull request moby#6493 from vieux/fix_cp_mac_os

allow utimes on mac os, only lutimes isn't supported

archive/archive.go

@@ -262,11 +262,11 @@ func createTarFile(path, extractDir string, hdr *tar.Header, reader io.Reader, L
 	ts := []syscall.Timespec{timeToTimespec(hdr.AccessTime), timeToTimespec(hdr.ModTime)}
 	// syscall.UtimesNano doesn't support a NOFOLLOW flag atm, and
 	if hdr.Typeflag != tar.TypeSymlink {
-		if err := system.UtimesNano(path, ts); err != nil {
+		if err := system.UtimesNano(path, ts); err != nil && err != system.ErrNotSupportedPlatform {
 			return err
 		}
 	} else {
-		if err := system.LUtimesNano(path, ts); err != nil {
+		if err := system.LUtimesNano(path, ts); err != nil && err != system.ErrNotSupportedPlatform {
 			return err
 		}
 	}

pkg/system/utimes_darwin.go

@@ -0,0 +1,11 @@
+package system
+
+import "syscall"
+
+func LUtimesNano(path string, ts []syscall.Timespec) error {
+	return ErrNotSupportedPlatform
+}
+
+func UtimesNano(path string, ts []syscall.Timespec) error {
+	return syscall.UtimesNano(path, ts)
+}

pkg/system/utimes_linux.go

@@ -24,8 +24,5 @@ func LUtimesNano(path string, ts []syscall.Timespec) error {
 }
 
 func UtimesNano(path string, ts []syscall.Timespec) error {
-	if err := syscall.UtimesNano(path, ts); err != nil {
-		return err
-	}
-	return nil
+	return syscall.UtimesNano(path, ts)
 }

pkg/system/utimes_unsupported.go

@@ -1,4 +1,4 @@
-// +build !linux,!freebsd
+// +build !linux,!freebsd,!darwin
 
 package system