Initial

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>

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

@@ -0,0 +1,29 @@
+package wclayer
+
+import (
+	"github.com/Microsoft/hcsshim/internal/hcserror"
+	"github.com/sirupsen/logrus"
+)
+
+// DeactivateLayer will dismount a layer that was mounted via ActivateLayer.
+func DeactivateLayer(path string) (err error) {
+	title := "hcsshim::DeactivateLayer"
+	fields := logrus.Fields{
+		"path": path,
+	}
+	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 = deactivateLayer(&stdDriverInfo, path)
+	if err != nil {
+		return hcserror.New(err, title+"- failed", "")
+	}
+	return nil
+}