1// Copyright 2016 The etcd Authors
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15package command
16
17import (
18	"fmt"
19	"os"
20
21	"github.com/spf13/cobra"
22)
23
24// NewDefragCommand returns the cobra command for "Defrag".
25func NewDefragCommand() *cobra.Command {
26	return &cobra.Command{
27		Use:   "defrag",
28		Short: "Defragments the storage of the etcd members with given endpoints",
29		Run:   defragCommandFunc,
30	}
31}
32
33func defragCommandFunc(cmd *cobra.Command, args []string) {
34	failures := 0
35	c := mustClientFromCmd(cmd)
36	for _, ep := range c.Endpoints() {
37		ctx, cancel := commandCtx(cmd)
38		_, err := c.Defragment(ctx, ep)
39		cancel()
40		if err != nil {
41			fmt.Fprintf(os.Stderr, "Failed to defragment etcd member[%s] (%v)\n", ep, err)
42			failures++
43		} else {
44			fmt.Printf("Finished defragmenting etcd member[%s]\n", ep)
45		}
46	}
47
48	if failures != 0 {
49		os.Exit(ExitError)
50	}
51}
52