Move deps from _workspace/ to vendor/

godep restore
pushd $GOPATH/src/github.com/appc/spec
git co master
popd
go get go4.org/errorutil
rm -rf Godeps
godep save ./...
git add vendor
git add -f $(git ls-files --other vendor/)
git co -- Godeps/LICENSES Godeps/.license_file_state Godeps/OWNERS

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

@@ -0,0 +1,91 @@
+// 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+git"
+
+	// Git SHA Value will be set during build
+	GitSHA = "Not provided (use ./build instead of go build)"
+)
+
+// DataDirVersion 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])
+}