mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
104 lines
3.0 KiB
Go
104 lines
3.0 KiB
Go
// 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"
|
|
"strings"
|
|
|
|
"github.com/coreos/etcd/Godeps/_workspace/src/github.com/spf13/cobra"
|
|
"github.com/coreos/etcd/Godeps/_workspace/src/golang.org/x/net/context"
|
|
pb "github.com/coreos/etcd/etcdserver/etcdserverpb"
|
|
)
|
|
|
|
var (
|
|
rangeLimit int
|
|
rangeSortOrder string
|
|
rangeSortTarget string
|
|
)
|
|
|
|
// NewRangeCommand returns the cobra command for "range".
|
|
func NewRangeCommand() *cobra.Command {
|
|
cmd := &cobra.Command{
|
|
Use: "range",
|
|
Short: "Range gets the keys in the range from the store.",
|
|
Run: rangeCommandFunc,
|
|
}
|
|
cmd.Flags().StringVar(&rangeSortOrder, "order", "", "order of results; ASCEND or DESCEND")
|
|
cmd.Flags().StringVar(&rangeSortTarget, "sort-by", "", "sort target; CREATE, KEY, MODIFY, VALUE, or VERSION")
|
|
cmd.Flags().IntVar(&rangeLimit, "limit", 0, "maximum number of results")
|
|
return cmd
|
|
}
|
|
|
|
// rangeCommandFunc executes the "range" command.
|
|
func rangeCommandFunc(cmd *cobra.Command, args []string) {
|
|
if len(args) == 0 {
|
|
ExitWithError(ExitBadArgs, fmt.Errorf("range command needs arguments."))
|
|
}
|
|
|
|
var rangeEnd []byte
|
|
key := []byte(args[0])
|
|
if len(args) > 1 {
|
|
rangeEnd = []byte(args[1])
|
|
}
|
|
|
|
sortByOrder := pb.RangeRequest_NONE
|
|
sortOrder := strings.ToUpper(rangeSortOrder)
|
|
switch {
|
|
case sortOrder == "ASCEND":
|
|
sortByOrder = pb.RangeRequest_ASCEND
|
|
case sortOrder == "DESCEND":
|
|
sortByOrder = pb.RangeRequest_DESCEND
|
|
case sortOrder == "":
|
|
sortByOrder = pb.RangeRequest_NONE
|
|
default:
|
|
ExitWithError(ExitBadFeature, fmt.Errorf("bad sort order %v", rangeSortOrder))
|
|
}
|
|
|
|
sortByTarget := pb.RangeRequest_KEY
|
|
sortTarget := strings.ToUpper(rangeSortTarget)
|
|
switch {
|
|
case sortTarget == "CREATE":
|
|
sortByTarget = pb.RangeRequest_CREATE
|
|
case sortTarget == "KEY":
|
|
sortByTarget = pb.RangeRequest_KEY
|
|
case sortTarget == "MODIFY":
|
|
sortByTarget = pb.RangeRequest_MOD
|
|
case sortTarget == "VALUE":
|
|
sortByTarget = pb.RangeRequest_VALUE
|
|
case sortTarget == "VERSION":
|
|
sortByTarget = pb.RangeRequest_VERSION
|
|
case sortTarget == "":
|
|
sortByTarget = pb.RangeRequest_KEY
|
|
default:
|
|
ExitWithError(ExitBadFeature, fmt.Errorf("bad sort target %v", rangeSortTarget))
|
|
}
|
|
|
|
req := &pb.RangeRequest{
|
|
Key: key,
|
|
RangeEnd: rangeEnd,
|
|
SortOrder: sortByOrder,
|
|
SortTarget: sortByTarget,
|
|
Limit: int64(rangeLimit),
|
|
}
|
|
resp, err := mustClientFromCmd(cmd).KV.Range(context.Background(), req)
|
|
if err != nil {
|
|
ExitWithError(ExitError, err)
|
|
}
|
|
for _, kv := range resp.Kvs {
|
|
fmt.Printf("%s %s\n", string(kv.Key), string(kv.Value))
|
|
}
|
|
}
|