Initial commit

vendor/github.com/hyperhq/hypercli/daemon/rename.go

@@ -0,0 +1,85 @@
+package daemon
+
+import (
+	"strings"
+
+	"github.com/Sirupsen/logrus"
+	derr "github.com/hyperhq/hypercli/errors"
+	"github.com/docker/libnetwork"
+)
+
+// ContainerRename changes the name of a container, using the oldName
+// to find the container. An error is returned if newName is already
+// reserved.
+func (daemon *Daemon) ContainerRename(oldName, newName string) error {
+	var (
+		sid string
+		sb  libnetwork.Sandbox
+	)
+
+	if oldName == "" || newName == "" {
+		return derr.ErrorCodeEmptyRename
+	}
+
+	container, err := daemon.GetContainer(oldName)
+	if err != nil {
+		return err
+	}
+
+	oldName = container.Name
+
+	container.Lock()
+	defer container.Unlock()
+	if newName, err = daemon.reserveName(container.ID, newName); err != nil {
+		return derr.ErrorCodeRenameTaken.WithArgs(err)
+	}
+
+	container.Name = newName
+
+	defer func() {
+		if err != nil {
+			container.Name = oldName
+			daemon.reserveName(container.ID, oldName)
+			daemon.releaseName(newName)
+		}
+	}()
+
+	daemon.releaseName(oldName)
+	if err = container.ToDisk(); err != nil {
+		return err
+	}
+
+	attributes := map[string]string{
+		"oldName": oldName,
+	}
+
+	if !container.Running {
+		daemon.LogContainerEventWithAttributes(container, "rename", attributes)
+		return nil
+	}
+
+	defer func() {
+		if err != nil {
+			container.Name = oldName
+			if e := container.ToDisk(); e != nil {
+				logrus.Errorf("%s: Failed in writing to Disk on rename failure: %v", container.ID, e)
+			}
+		}
+	}()
+
+	sid = container.NetworkSettings.SandboxID
+	if daemon.netController != nil {
+		sb, err = daemon.netController.SandboxByID(sid)
+		if err != nil {
+			return err
+		}
+
+		err = sb.Rename(strings.TrimPrefix(container.Name, "/"))
+		if err != nil {
+			return err
+		}
+	}
+
+	daemon.LogContainerEventWithAttributes(container, "rename", attributes)
+	return nil
+}