migrate to go modules

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>

vendor/github.com/Microsoft/hcsshim/internal/wclayer/nametoguid.go

@@ -0,0 +1,34 @@
+package wclayer
+
+import (
+	"github.com/Microsoft/hcsshim/internal/guid"
+	"github.com/Microsoft/hcsshim/internal/hcserror"
+	"github.com/sirupsen/logrus"
+)
+
+// NameToGuid converts the given string into a GUID using the algorithm in the
+// Host Compute Service, ensuring GUIDs generated with the same string are common
+// across all clients.
+func NameToGuid(name string) (id guid.GUID, err error) {
+	title := "hcsshim::NameToGuid"
+	fields := logrus.Fields{
+		"name": name,
+	}
+	logrus.WithFields(fields).Debug(title)
+	defer func() {
+		if err != nil {
+			fields[logrus.ErrorKey] = err
+			logrus.WithFields(fields).Error(err)
+		} else {
+			logrus.WithFields(fields).Debug(title + " - succeeded")
+		}
+	}()
+
+	err = nameToGuid(name, &id)
+	if err != nil {
+		err = hcserror.New(err, title+" - failed", "")
+		return
+	}
+	fields["guid"] = id.String()
+	return
+}