mirror of
https://github.com/etcd-io/etcd.git
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67 lines
2.0 KiB
Go
67 lines
2.0 KiB
Go
/*
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Copyright 2014 CoreOS, Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package command
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import (
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"errors"
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"github.com/coreos/etcd/Godeps/_workspace/src/github.com/codegangsta/cli"
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"github.com/coreos/etcd/Godeps/_workspace/src/github.com/coreos/go-etcd/etcd"
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)
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// NewRemoveCommand returns the CLI command for "rm".
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func NewRemoveCommand() cli.Command {
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return cli.Command{
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Name: "rm",
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Usage: "remove a key",
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Flags: []cli.Flag{
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cli.BoolFlag{Name: "dir", Usage: "removes the key if it is an empty directory or a key-value pair"},
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cli.BoolFlag{Name: "recursive", Usage: "removes the key and all child keys(if it is a directory)"},
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cli.StringFlag{Name: "with-value", Value: "", Usage: "previous value"},
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cli.IntFlag{Name: "with-index", Value: 0, Usage: "previous index"},
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},
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Action: func(c *cli.Context) {
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handleAll(c, removeCommandFunc)
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},
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}
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}
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// removeCommandFunc executes the "rm" command.
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func removeCommandFunc(c *cli.Context, client *etcd.Client) (*etcd.Response, error) {
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if len(c.Args()) == 0 {
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return nil, errors.New("Key required")
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}
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key := c.Args()[0]
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recursive := c.Bool("recursive")
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dir := c.Bool("dir")
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// TODO: distinguish with flag is not set and empty flag
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// the cli pkg need to provide this feature
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prevValue := c.String("with-value")
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prevIndex := uint64(c.Int("with-index"))
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if prevValue != "" || prevIndex != 0 {
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return client.CompareAndDelete(key, prevValue, prevIndex)
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}
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if recursive || !dir {
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return client.Delete(key, recursive)
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}
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return client.DeleteDir(key)
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}
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