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// 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 (
"errors"
"fmt"
"os"
"github.com/coreos/etcd/Godeps/_workspace/src/github.com/codegangsta/cli"
"github.com/coreos/etcd/client"
)
// NewGetCommand returns the CLI command for "get".
func NewGetCommand() cli.Command {
return cli.Command{
Name: "get",
Usage: "retrieve the value of a key",
ArgsUsage: "<key>",
Flags: []cli.Flag{
cli.BoolFlag{Name: "sort", Usage: "returns result in sorted order"},
cli.BoolFlag{Name: "quorum", Usage: "require quorum for get request"},
},
Action: func(c *cli.Context) {
getCommandFunc(c, mustNewKeyAPI(c))
},
}
}
// getCommandFunc executes the "get" command.
func getCommandFunc(c *cli.Context, ki client.KeysAPI) {
if len(c.Args()) == 0 {
handleError(ExitBadArgs, errors.New("key required"))
}
key := c.Args()[0]
sorted := c.Bool("sort")
quorum := c.Bool("quorum")
ctx, cancel := contextWithTotalTimeout(c)
resp, err := ki.Get(ctx, key, &client.GetOptions{Sort: sorted, Quorum: quorum})
cancel()
if err != nil {
handleError(ExitServerError, err)
}
if resp.Node.Dir {
fmt.Fprintln(os.Stderr, fmt.Sprintf("%s: is a directory", resp.Node.Key))
os.Exit(1)
}
printResponseKey(resp, c.GlobalString("output"))
}
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