add version cmd, fix bug for uninstall cmd

cmd/cmd.go

@@ -1,29 +1,12 @@
 package cmd
 
 import (
-	"fmt"
 	"github.com/spf13/cobra"
 	"log"
 )
 
-var (
-	version  = "TempVersion" //use ldflags replace
-	codename = "V2bX"
-	intro    = "A V2board backend based on Xray-core"
-)
-
-func showVersion() {
-	fmt.Printf("%s %s (%s) \n", codename, version, intro)
-	// Warning
-	fmt.Println(Warn("This version need V2board version >= 1.7.0."))
-	fmt.Println(Warn("This version changed config file. Please check config file before running."))
-}
-
 var command = &cobra.Command{
 	Use: "V2bX",
-	PreRun: func(_ *cobra.Command, _ []string) {
-		showVersion()
-	},
 }
 
 func Run() {

cmd/install_linux.go

@@ -49,6 +49,7 @@ func uninstallHandle(_ *cobra.Command, _ []string) {
 	_ = os.RemoveAll("/etc/systemd/system/V2bX.service")
 	_ = os.RemoveAll("/etc/V2bX/")
 	_ = os.RemoveAll("/usr/local/V2bX/")
+	_ = os.RemoveAll("/bin/V2bX")
 	_, err = execCommand("systemctl daemon-reload&&systemctl reset-failed")
 	if err != nil {
 		fmt.Println(Err("exec cmd error: ", err))

cmd/server.go

@@ -36,6 +36,7 @@ func init() {
 }
 
 func serverHandle(_ *cobra.Command, _ []string) {
+	showVersion()
 	c := conf.New()
 	err := c.LoadFromPath(config)
 	if err != nil {

cmd/version.go

@@ -0,0 +1,31 @@
+package cmd
+
+import (
+	"fmt"
+	"github.com/spf13/cobra"
+)
+
+var (
+	version  = "TempVersion" //use ldflags replace
+	codename = "V2bX"
+	intro    = "A V2board backend based on Xray-core"
+)
+
+var versionCommand = cobra.Command{
+	Use:   "version",
+	Short: "Print version info",
+	Run: func(cmd *cobra.Command, args []string) {
+		showVersion()
+	},
+}
+
+func init() {
+	command.AddCommand(&versionCommand)
+}
+
+func showVersion() {
+	fmt.Printf("%s %s (%s) \n", codename, version, intro)
+	// Warning
+	fmt.Println(Warn("This version need V2board version >= 1.7.0."))
+	fmt.Println(Warn("This version changed config file. Please check config file before running."))
+}