feat(root): add version flag

cmd/root.go

@@ -1,21 +1,31 @@
 package cmd
 
 import (
+	"github.com/fatih/color"
 	"github.com/iyear/searchx/cmd/run"
+	"github.com/iyear/searchx/global"
 	"github.com/spf13/cobra"
 )
 
+var version bool
+
 // TODO
 var cmd = &cobra.Command{
 	Use:   "searchx",
-	Short: "Hugo is a very fast static site generator",
-	Long: `A Fast and Flexible Static Site Generator built with
-                love by spf13 and friends in Go.
-                Complete documentation is available at https://gohugo.io/documentation/`,
+	Short: "",
+	Long:  ``,
+	Run: func(cmd *cobra.Command, args []string) {
+		if version {
+			color.Blue("%s\n%s", global.Version, global.GetRuntime())
+		}
+	},
 }
 
 func init() {
 	cmd.AddCommand(run.Cmd)
+
+	cmd.PersistentFlags().BoolVarP(&version, "version", "v", false, "check the version of pure-live")
+
 }
 
 func Execute() {

global/version.go

@@ -1,3 +1,12 @@
 package global
 
+import (
+	"fmt"
+	"runtime"
+)
+
 var Version string
+
+func GetRuntime() string {
+	return fmt.Sprintf("%s %s/%s", runtime.Version(), runtime.GOOS, runtime.GOARCH)
+}