add vendoring with go dep

vendor/github.com/vmware/govmomi/govc/vm/snapshot/tree.go

@@ -0,0 +1,145 @@
+/*
+Copyright (c) 2016 VMware, Inc. All Rights Reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package snapshot
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"path"
+	"strings"
+
+	"github.com/vmware/govmomi/govc/cli"
+	"github.com/vmware/govmomi/govc/flags"
+	"github.com/vmware/govmomi/vim25/mo"
+	"github.com/vmware/govmomi/vim25/types"
+)
+
+type tree struct {
+	*flags.VirtualMachineFlag
+
+	fullPath bool
+	current  bool
+	date     bool
+	id       bool
+
+	info *types.VirtualMachineSnapshotInfo
+}
+
+func init() {
+	cli.Register("snapshot.tree", &tree{})
+}
+
+func (cmd *tree) Register(ctx context.Context, f *flag.FlagSet) {
+	cmd.VirtualMachineFlag, ctx = flags.NewVirtualMachineFlag(ctx)
+	cmd.VirtualMachineFlag.Register(ctx, f)
+
+	f.BoolVar(&cmd.fullPath, "f", false, "Print the full path prefix for snapshot")
+	f.BoolVar(&cmd.current, "c", true, "Print the current snapshot")
+	f.BoolVar(&cmd.date, "D", false, "Print the snapshot creation date")
+	f.BoolVar(&cmd.id, "i", false, "Print the snapshot id")
+}
+
+func (cmd *tree) Description() string {
+	return `List VM snapshots in a tree-like format.
+
+The command will exit 0 with no output if VM does not have any snapshots.
+
+Examples:
+  govc snapshot.tree -vm my-vm
+  govc snapshot.tree -vm my-vm -D -i`
+}
+
+func (cmd *tree) Process(ctx context.Context) error {
+	if err := cmd.VirtualMachineFlag.Process(ctx); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (cmd *tree) write(level int, parent string, st []types.VirtualMachineSnapshotTree) {
+	for _, s := range st {
+		sname := s.Name
+
+		if cmd.fullPath && parent != "" {
+			sname = path.Join(parent, sname)
+		}
+
+		names := []string{sname}
+
+		if cmd.current && s.Snapshot == *cmd.info.CurrentSnapshot {
+			names = append(names, ".")
+		}
+
+		for _, name := range names {
+			var attr []string
+			var meta string
+
+			if cmd.id {
+				attr = append(attr, s.Snapshot.Value)
+			}
+
+			if cmd.date {
+				attr = append(attr, s.CreateTime.Format("Jan 2 15:04"))
+			}
+
+			if len(attr) > 0 {
+				meta = fmt.Sprintf("[%s]  ", strings.Join(attr, " "))
+			}
+
+			fmt.Printf("%s%s%s\n", strings.Repeat(" ", level), meta, name)
+		}
+
+		cmd.write(level+2, sname, s.ChildSnapshotList)
+	}
+}
+
+func (cmd *tree) Run(ctx context.Context, f *flag.FlagSet) error {
+	if f.NArg() != 0 {
+		return flag.ErrHelp
+	}
+
+	vm, err := cmd.VirtualMachine()
+	if err != nil {
+		return err
+	}
+
+	if vm == nil {
+		return flag.ErrHelp
+	}
+
+	var o mo.VirtualMachine
+
+	err = vm.Properties(ctx, vm.Reference(), []string{"snapshot"}, &o)
+	if err != nil {
+		return err
+	}
+
+	if o.Snapshot == nil {
+		return nil
+	}
+
+	if cmd.current && o.Snapshot.CurrentSnapshot == nil {
+		cmd.current = false
+	}
+
+	cmd.info = o.Snapshot
+
+	cmd.write(0, "", o.Snapshot.RootSnapshotList)
+
+	return nil
+}