Merge pull request #81 from sloong/master

Add direct run mode

cmd/wsl2host/main.go

@@ -7,15 +7,18 @@ import (
 	"strings"
 
 	"github.com/shayne/go-wsl2-host/cmd/wsl2host/internal"
+	"github.com/shayne/go-wsl2-host/cmd/wsl2host/pkg/service"
 	"golang.org/x/sys/windows/svc"
+	"golang.org/x/sys/windows/svc/eventlog"
 )
 
 func usage(errmsg string) {
 	fmt.Fprintf(os.Stderr,
 		"%s\n\n"+
 			"usage: %s <command>\n"+
 			"       where <command> is one of\n"+
-			"       install, remove, debug, start, stop, pause or continue.\n",
+			"       install, remove, debug, start, stop, pause or continue.\n"+
+			"       run: One-time run and update.\n",
 		errmsg, os.Args[0])
 	os.Exit(2)
 }
@@ -53,6 +56,12 @@ func main() {
 		err = internal.ControlService(svcName, svc.Pause, svc.Paused)
 	case "continue":
 		err = internal.ControlService(svcName, svc.Continue, svc.Running)
+	case "run":
+		elog, err := eventlog.Open(svcName)
+		if err != nil {
+			return
+		}
+		err = service.Run(elog)
 	default:
 		usage(fmt.Sprintf("invalid command %s", cmd))
 	}

pkg/hostsapi/hostsapi.go

@@ -201,7 +201,10 @@ func GetHostIP() (string, error) {
 	}
 	// If system language not english, the output not "IP Address". such as in chinese it's "IP 地址".
 	// And the output no have other such as "IP", so we can only match the "IP".
-	ipRegex := regexp.MustCompile("IP.*:?\040*(.*)\r\n")
+	// If need change reglar, make sure the other language is work OK.
+	// In chinese language os, the output is:
+	// "\r\n\xbdӿ\xda \"vEthernet (WSL)\" \xb5\xc4\xc5\xe4\xd6\xc3\r\n    DHCP \xd2\xd1\xc6\xf4\xd3\xc3:                          \xb7\xf1\r\n    IP \xb5\xd8ַ:                           172.18.144.1\r\n    \xd7\xd3\xcd\xf8ǰ\u05fa:                        172.18.144.0/20 (\xd1\xda\xc2\xeb 255.255.240.0)\r\n    InterfaceMetric:                      15\r\n\r\n"
+	ipRegex := regexp.MustCompile("IP.*:? \040*(.*)\r\n")
 	ipString := ipRegex.FindStringSubmatch(string(out))
 	if len(ipString) != 2 {
 		return "", errors.New(`netsh interface ip show address "vEthernet (WSL)"`)