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ls_command.go 2.20 KB
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XiangLi 提交于 2015-08-11 13:33 . etcdctl: add per request timeout
// Copyright 2015 CoreOS, Inc.
//
// 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 (
"fmt"
"github.com/coreos/etcd/Godeps/_workspace/src/github.com/codegangsta/cli"
"github.com/coreos/etcd/Godeps/_workspace/src/golang.org/x/net/context"
"github.com/coreos/etcd/client"
)
func NewLsCommand() cli.Command {
return cli.Command{
Name: "ls",
Usage: "retrieve a directory",
Flags: []cli.Flag{
cli.BoolFlag{Name: "sort", Usage: "returns result in sorted order"},
cli.BoolFlag{Name: "recursive", Usage: "returns all key names recursively for the given path"},
cli.BoolFlag{Name: "p", Usage: "append slash (/) to directories"},
},
Action: func(c *cli.Context) {
lsCommandFunc(c, mustNewKeyAPI(c))
},
}
}
// lsCommandFunc executes the "ls" command.
func lsCommandFunc(c *cli.Context, ki client.KeysAPI) {
key := "/"
if len(c.Args()) != 0 {
key = c.Args()[0]
}
sort := c.Bool("sort")
recursive := c.Bool("recursive")
resp, err := ki.Get(context.TODO(), key, &client.GetOptions{Sort: sort, Recursive: recursive})
if err != nil {
handleError(ExitServerError, err)
}
printLs(c, resp)
}
// printLs writes a response out in a manner similar to the `ls` command in unix.
// Non-empty directories list their contents and files list their name.
func printLs(c *cli.Context, resp *client.Response) {
if !resp.Node.Dir {
fmt.Println(resp.Node.Key)
}
for _, node := range resp.Node.Nodes {
rPrint(c, node)
}
}
// rPrint recursively prints out the nodes in the node structure.
func rPrint(c *cli.Context, n *client.Node) {
if n.Dir && c.Bool("p") {
fmt.Println(fmt.Sprintf("%v/", n.Key))
} else {
fmt.Println(n.Key)
}
for _, node := range n.Nodes {
rPrint(c, node)
}
}
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shanmenghao
etcd
etcd
v2.2.0-alpha.1

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