Move version.go to commands dir.

pkg/commands/version.go

@@ -0,0 +1,75 @@
+/*
+Copyright 2018 The Kubernetes Authors.
+
+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 commands
+
+import (
+	"fmt"
+	"io"
+
+	"github.com/spf13/cobra"
+)
+
+var (
+	kustomizeVersion = "unknown"
+	goos             = "unknown"
+	goarch           = "unknown"
+	gitCommit        = "$Format:%H$" // sha1 from git, output of $(git rev-parse HEAD)
+
+	buildDate = "1970-01-01T00:00:00Z" // build date in ISO8601 format, output of $(date -u +'%Y-%m-%dT%H:%M:%SZ')
+)
+
+// version returns the version of kustomize.
+type version struct {
+	// KustomizeVersion is a kustomize binary version.
+	KustomizeVersion string `json:"kustomizeVersion"`
+	// GitCommit is a git commit
+	GitCommit string `json:"gitCommit"`
+	// BuildDate is a build date of the binary.
+	BuildDate string `json:"buildDate"`
+	// GoOs holds OS name.
+	GoOs string `json:"goOs"`
+	// GoArch holds architecture name.
+	GoArch string `json:"goArch"`
+}
+
+// getVersion returns version.
+func getVersion() version {
+	return version{
+		kustomizeVersion,
+		gitCommit,
+		buildDate,
+		goos,
+		goarch,
+	}
+}
+
+// Print prints version.
+func (v version) Print(w io.Writer) {
+	fmt.Fprintf(w, "Version: %+v\n", v)
+}
+
+// NewCmdVersion makes version command.
+func newCmdVersion(w io.Writer) *cobra.Command {
+	return &cobra.Command{
+		Use:     "version",
+		Short:   "Prints the kustomize version",
+		Example: `kustomize version`,
+		Run: func(cmd *cobra.Command, args []string) {
+			getVersion().Print(w)
+		},
+	}
+}