add vendoring with go dep

vendor/github.com/vmware/govmomi/govc/metric/ls.go

@@ -0,0 +1,140 @@
+/*
+Copyright (c) 2017 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 metric
+
+import (
+	"context"
+	"encoding/json"
+	"flag"
+	"fmt"
+	"io"
+	"text/tabwriter"
+
+	"github.com/vmware/govmomi/govc/cli"
+	"github.com/vmware/govmomi/performance"
+	"github.com/vmware/govmomi/vim25/types"
+)
+
+type ls struct {
+	*PerformanceFlag
+
+	long bool
+}
+
+func init() {
+	cli.Register("metric.ls", &ls{})
+}
+
+func (cmd *ls) Register(ctx context.Context, f *flag.FlagSet) {
+	cmd.PerformanceFlag, ctx = NewPerformanceFlag(ctx)
+	cmd.PerformanceFlag.Register(ctx, f)
+
+	f.BoolVar(&cmd.long, "l", false, "Long listing format")
+}
+
+func (cmd *ls) Usage() string {
+	return "PATH"
+}
+
+func (cmd *ls) Description() string {
+	return `List available metrics for PATH.
+
+Examples:
+  govc metric.ls /dc1/host/cluster1
+  govc metric.ls datastore/*
+  govc metric.ls vm/* | grep mem. | xargs govc metric.sample vm/*`
+}
+
+func (cmd *ls) Process(ctx context.Context) error {
+	if err := cmd.PerformanceFlag.Process(ctx); err != nil {
+		return err
+	}
+	return nil
+}
+
+type lsResult struct {
+	cmd      *ls
+	counters map[int32]*types.PerfCounterInfo
+	performance.MetricList
+}
+
+func (r *lsResult) Write(w io.Writer) error {
+	tw := tabwriter.NewWriter(w, 2, 0, 2, ' ', 0)
+
+	for _, id := range r.MetricList {
+		if id.Instance != "" {
+			continue
+		}
+
+		info := r.counters[id.CounterId]
+
+		if r.cmd.long {
+			fmt.Fprintf(w, "%s\t%s\n", info.Name(),
+				info.NameInfo.GetElementDescription().Label)
+			continue
+		}
+
+		fmt.Fprintln(w, info.Name())
+	}
+
+	return tw.Flush()
+}
+
+func (r *lsResult) MarshalJSON() ([]byte, error) {
+	m := make(map[string]*types.PerfCounterInfo)
+
+	for _, id := range r.MetricList {
+		info := r.counters[id.CounterId]
+
+		m[info.Name()] = info
+	}
+
+	return json.Marshal(m)
+}
+
+func (cmd *ls) Run(ctx context.Context, f *flag.FlagSet) error {
+	if f.NArg() != 1 {
+		return flag.ErrHelp
+	}
+
+	objs, err := cmd.ManagedObjects(ctx, f.Args())
+	if err != nil {
+		return err
+	}
+
+	m, err := cmd.Manager(ctx)
+	if err != nil {
+		return err
+	}
+
+	s, err := m.ProviderSummary(ctx, objs[0])
+	if err != nil {
+		return err
+	}
+
+	mids, err := m.AvailableMetric(ctx, objs[0], cmd.Interval(s.RefreshRate))
+	if err != nil {
+		return err
+	}
+
+	counters, err := m.CounterInfoByKey(ctx)
+	if err != nil {
+		return err
+	}
+
+	return cmd.WriteResult(&lsResult{cmd, counters, mids})
+}