refactor: clean coreos/etcd dependency.

vendor/github.com/coreos/etcd/version/version.go

@@ -1,91 +0,0 @@
-// 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 implements etcd version parsing and contains latest version
-// information.
-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"
-
-	// 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])
-}