refactor: openpitrix module

Signed-off-by: hongming <talonwan@yunify.com>

vendor/openpitrix.io/openpitrix/pkg/version/.gitignore

@@ -0,0 +1 @@
+z_update_version.go

vendor/openpitrix.io/openpitrix/pkg/version/Makefile

@@ -0,0 +1,9 @@
+# Copyright 2017 The OpenPitrix Authors. All rights reserved.
+# Use of this source code is governed by a Apache license
+# that can be found in the LICENSE file.
+
+default:
+	go generate
+
+clean:
+	-rm z_update_version.go

vendor/openpitrix.io/openpitrix/pkg/version/version.go

@@ -0,0 +1,26 @@
+// Copyright 2017 The OpenPitrix Authors. All rights reserved.
+// Use of this source code is governed by a Apache license
+// that can be found in the LICENSE file.
+
+//go:generate go run gen_helper.go
+//go:generate go fmt
+
+package version
+
+import "fmt"
+
+var (
+	ShortVersion   = "dev"
+	GitSha1Version = "git-sha1"
+	BuildDate      = "2017-01-01"
+)
+
+func PrintVersionInfo(printer func(string, ...interface{})) {
+	printer("Release OpVersion: %s", ShortVersion)
+	printer("Git Commit Hash: %s", GitSha1Version)
+	printer("Build Time: %s", BuildDate)
+}
+
+func GetVersionString() string {
+	return fmt.Sprintf("%s; git: %s; build time: %s", ShortVersion, GitSha1Version, BuildDate)
+}