Fixing up version command

Makefile

@@ -4,11 +4,12 @@ GOBUILD=GO111MODULE=on $(GOCMD) build
 GOCLEAN=$(GOCMD) clean
 GOTEST=GO111MODULE=on $(GOCMD) test
 BINARY_NAME=vpa-analysis
-VERSION := $(shell git rev-parse HEAD)
+COMMIT := $(shell git rev-parse HEAD)
+VERSION := "dev"
 
 all: test build
 build:
-	$(GOBUILD) -o $(BINARY_NAME) -ldflags "-X main.version=$(VERSION) -s -w" -v
+	$(GOBUILD) -o $(BINARY_NAME) -ldflags "-X main.version=$(VERSION) -X main.commit=$(COMMIT) -s -w" -v
 test:
 	printf "Linter:\n"
 	GO111MODULE=on $(GOCMD) list ./... | xargs -L1 golint | tee golint-report.out

cmd/root.go

@@ -29,7 +29,8 @@ var namespace string
 var vpaLabels map[string]string
 
 var (
-	version string
+	VERSION string
+	COMMIT  string
 )
 
 func init() {
@@ -73,7 +74,9 @@ var rootCmd = &cobra.Command{
 }
 
 // Execute the stuff
-func Execute(version string) {
+func Execute(version string, commit string) {
+	VERSION = version
+	COMMIT = commit
 	if err := rootCmd.Execute(); err != nil {
 		glog.Error(err)
 		os.Exit(1)

cmd/version.go

@@ -29,6 +29,6 @@ var versionCmd = &cobra.Command{
 	Short: "Prints the current version of the tool.",
 	Long:  `Prints the current version.`,
 	Run: func(cmd *cobra.Command, args []string) {
-		fmt.Println(rootCmd.Use + " " + version)
+		fmt.Println("Version:" + VERSION + " Commit:" + COMMIT)
 	},
 }

main.go

@@ -20,9 +20,10 @@ import (
 
 var (
 	// version is set during build
-	version = "v0.2.0"
+	version = ""
+	commit  = ""
 )
 
 func main() {
-	cmd.Execute(version)
+	cmd.Execute(version, commit)
 }