| // Copyright 2016 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. |
| |
| // etcdctl is a command line application that controls etcd. |
| package main |
| |
| import ( |
| "fmt" |
| "os" |
| |
| "github.com/coreos/etcd/etcdctl/ctlv2" |
| "github.com/coreos/etcd/etcdctl/ctlv3" |
| ) |
| |
| const ( |
| apiEnv = "ETCDCTL_API" |
| ) |
| |
| func main() { |
| apiv := os.Getenv(apiEnv) |
| // unset apiEnv to avoid side-effect for future env and flag parsing. |
| os.Unsetenv(apiEnv) |
| if len(apiv) == 0 || apiv == "2" { |
| ctlv2.Start(apiv) |
| return |
| } |
| |
| if apiv == "3" { |
| ctlv3.Start() |
| return |
| } |
| |
| fmt.Fprintln(os.Stderr, "unsupported API version", apiv) |
| os.Exit(1) |
| } |