Create version.go

cmd/wsctl/cmd/version.go

@@ -0,0 +1,27 @@
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+// Version is set during build time using -ldflags
+var Version string
+
+// versionCmd represents the version command
+var versionCmd = &cobra.Command{
+	Use:   "version",
+	Short: "Print the version number of wsctl",
+	Long:  `All software has versions. This is wsctl's version.`,
+	Run: func(cmd *cobra.Command, args []string) {
+		if Version == "" {
+			Version = "development" // default version if not set during build
+		}
+		fmt.Printf("wsctl version: %s\n", Version)
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(versionCmd)
+}