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version.go 2.15 KB
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Yicheng Qin 提交于 2015-06-16 14:19 . *: bump to v2.0.12
// 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 (
"os"
"path"
"github.com/coreos/etcd/pkg/fileutil"
"github.com/coreos/etcd/pkg/types"
)
var (
Version = "2.0.12"
// 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"
DataDir0_4 DataDirVersion = "0.4.x"
DataDir2_0 DataDirVersion = "2.0.0"
DataDir2_0Proxy DataDirVersion = "2.0 proxy"
DataDir2_0_1 DataDirVersion = "2.0.1"
)
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
} else if ver == DataDir0_4 {
// How in the blazes did it get there?
return DataDirUnknown, 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
}
if nameSet.ContainsAll([]string{"snapshot", "conf", "log"}) {
return DataDir0_4, nil
}
if nameSet.ContainsAll([]string{"standby_info"}) {
return DataDir0_4, nil
}
return DataDirUnknown, nil
}
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