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// Copyright 2015 The etcd Authors
//
// 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 command
import (
"errors"
"github.com/urfave/cli"
"go.etcd.io/etcd/client"
)
// NewRemoveCommand returns the CLI command for "rm".
func NewRemoveCommand() cli.Command {
return cli.Command{
Name: "rm",
Usage: "remove a key or a directory",
ArgsUsage: "<key>",
Flags: []cli.Flag{
cli.BoolFlag{Name: "dir", Usage: "removes the key if it is an empty directory or a key-value pair"},
cli.BoolFlag{Name: "recursive, r", Usage: "removes the key and all child keys(if it is a directory)"},
cli.StringFlag{Name: "with-value", Value: "", Usage: "previous value"},
cli.IntFlag{Name: "with-index", Value: 0, Usage: "previous index"},
},
Action: func(c *cli.Context) error {
rmCommandFunc(c, mustNewKeyAPI(c))
return nil
},
}
}
// rmCommandFunc executes the "rm" command.
func rmCommandFunc(c *cli.Context, ki client.KeysAPI) {
if len(c.Args()) == 0 {
handleError(c, ExitBadArgs, errors.New("key required"))
}
key := c.Args()[0]
recursive := c.Bool("recursive")
dir := c.Bool("dir")
prevValue := c.String("with-value")
prevIndex := c.Int("with-index")
ctx, cancel := contextWithTotalTimeout(c)
resp, err := ki.Delete(ctx, key, &client.DeleteOptions{PrevIndex: uint64(prevIndex), PrevValue: prevValue, Dir: dir, Recursive: recursive})
cancel()
if err != nil {
handleError(c, ExitServerError, err)
}
if !resp.Node.Dir || c.GlobalString("output") != "simple" {
printResponseKey(resp, c.GlobalString("output"))
}
}
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