自动安装nftables时尝试使用apt-get

internal/firewalls/nftables/installer.go

@@ -90,18 +90,26 @@ func (this *Installer) Install() error {
 	}
 
 	var cmd *executils.Cmd
+	var aptCmd *executils.Cmd
 
 	// check dnf
+	{
 		dnfExe, err := executils.LookPath("dnf")
 		if err == nil {
 			cmd = executils.NewCmd(dnfExe, "-y", "install", "nftables")
 		}
+	}
 
 	// check apt
 	if cmd == nil {
-		aptExe, err := executils.LookPath("apt")
+		aptGetExe, err := executils.LookPath("apt-get")
 		if err == nil {
-			cmd = executils.NewCmd(aptExe, "install", "nftables")
+			cmd = executils.NewCmd(aptGetExe, "install", "nftables")
+		}
+
+		aptExe, aptErr := executils.LookPath("apt")
+		if aptErr == nil {
+			aptCmd = executils.NewCmd(aptExe, "install", "nftables")
 		}
 	}
 
@@ -117,12 +125,22 @@ func (this *Installer) Install() error {
 		return nil
 	}
 
+	cmd.WithTimeout(10 * time.Minute)
+	cmd.WithStderr()
+	err := cmd.Run()
+	if err != nil {
+		// try 'apt-get' instead of 'apt'
+		if aptCmd != nil {
+			cmd = aptCmd
 			cmd.WithTimeout(10 * time.Minute)
 			cmd.WithStderr()
 			err = cmd.Run()
+		}
+
 		if err != nil {
 			return fmt.Errorf("%w: %s", err, cmd.Stderr())
 		}
+	}
 
 	remotelogs.Println("NFTABLES", "installed nftables with command '"+cmd.String()+"' successfully")