https://github.com/etcd-io/etcd
Tip revision: a2d4f85d33eeed1a618a6191f91c91fe7a64242a authored by Yicheng Qin on 06 November 2015, 17:08:39 UTC
*: bump to v2.3.0-alpha.0
*: bump to v2.3.0-alpha.0
Tip revision: a2d4f85
version.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 version
import (
"fmt"
"os"
"path"
"strings"
"github.com/coreos/etcd/pkg/fileutil"
"github.com/coreos/etcd/pkg/types"
)
var (
// MinClusterVersion is the min cluster version this etcd binary is compatible with.
MinClusterVersion = "2.2.0"
Version = "2.3.0-alpha.0"
// Git SHA Value will be set during build
GitSHA = "Not provided (use ./build instead of go build)"
)
// WalVersion is an enum for versions of etcd logs.
type DataDirVersion string
const (
DataDirUnknown DataDirVersion = "Unknown WAL"
DataDir2_0 DataDirVersion = "2.0.0"
DataDir2_0Proxy DataDirVersion = "2.0 proxy"
DataDir2_0_1 DataDirVersion = "2.0.1"
)
type Versions struct {
Server string `json:"etcdserver"`
Cluster string `json:"etcdcluster"`
// TODO: raft state machine version
}
func DetectDataDir(dirpath string) (DataDirVersion, error) {
names, err := fileutil.ReadDir(dirpath)
if err != nil {
if os.IsNotExist(err) {
err = nil
}
// Error reading the directory
return DataDirUnknown, err
}
nameSet := types.NewUnsafeSet(names...)
if nameSet.Contains("member") {
ver, err := DetectDataDir(path.Join(dirpath, "member"))
if ver == DataDir2_0 {
return DataDir2_0_1, nil
}
return ver, err
}
if nameSet.ContainsAll([]string{"snap", "wal"}) {
// .../wal cannot be empty to exist.
walnames, err := fileutil.ReadDir(path.Join(dirpath, "wal"))
if err == nil && len(walnames) > 0 {
return DataDir2_0, nil
}
}
if nameSet.ContainsAll([]string{"proxy"}) {
return DataDir2_0Proxy, nil
}
return DataDirUnknown, nil
}
// Cluster only keeps the major.minor.
func Cluster(v string) string {
vs := strings.Split(v, ".")
if len(vs) <= 2 {
return v
}
return fmt.Sprintf("%s.%s", vs[0], vs[1])
}