Extract file for version command

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>

cmd/root.go

@@ -1,21 +1,9 @@
 package cmd
 
 import (
-	"fmt"
-
-	"github.com/alexellis/faasd/pkg"
-	"github.com/morikuni/aec"
 	"github.com/spf13/cobra"
 )
 
-var (
-	// Version as per git repo
-	Version string
-
-	// GitCommit as per git repo
-	GitCommit string
-)
-
 // WelcomeMessage to introduce ofc-bootstrap
 const WelcomeMessage = "Welcome to faasd"
 
@@ -25,6 +13,14 @@ func init() {
 	rootCommand.AddCommand(installCmd)
 }
 
+func Execute() error {
+
+	if err := rootCommand.Execute(); err != nil {
+		return err
+	}
+	return nil
+}
+
 var rootCommand = &cobra.Command{
 	Use:   "faasd",
 	Short: "Start faasd",
@@ -35,41 +31,6 @@ faasd - serverless without Kubernetes
 	SilenceUsage: true,
 }
 
-var versionCmd = &cobra.Command{
-	Use:   "version",
-	Short: "Display version information.",
-	Run:   parseBaseCommand,
-}
-
-func getVersion() string {
-	if len(Version) != 0 {
-		return Version
-	}
-	return "dev"
-}
-
-func parseBaseCommand(_ *cobra.Command, _ []string) {
-	printLogo()
-
-	fmt.Printf(
-		`faasd
-Commit: %s
-Version: %s
-`, pkg.GitCommit, pkg.GetVersion())
-}
-
-func Execute(version, gitCommit string) error {
-
-	// Get Version and GitCommit values from main.go.
-	Version = version
-	GitCommit = gitCommit
-
-	if err := rootCommand.Execute(); err != nil {
-		return err
-	}
-	return nil
-}
-
 func runRootCommand(cmd *cobra.Command, args []string) error {
 
 	printLogo()
@@ -77,8 +38,3 @@ func runRootCommand(cmd *cobra.Command, args []string) error {
 
 	return nil
 }
-
-func printLogo() {
-	logoText := aec.WhiteF.Apply(pkg.Logo)
-	fmt.Println(logoText)
-}