fix tools executed in visible shell on Windows

Author: facchinm

programmer.go

@@ -210,6 +210,7 @@ func spHandlerProgram(flasher string, cmdString []string) {
 
 	extension := ""
 	if runtime.GOOS == "windows" {
+		tellCommandNotToSpawnShell(oscmd)
 		extension = ".exe"
 	}
 

seriallist_darwin.go

@@ -59,3 +59,6 @@ func associateVidPidWithPort(ports []OsSerialPort) []OsSerialPort {
 
 func hideFile(path string) {
 }
+
+func tellCommandNotToSpawnShell(_ *exec.Cmd) {
+}

seriallist_linux.go

@@ -35,3 +35,6 @@ func associateVidPidWithPort(ports []OsSerialPort) []OsSerialPort {
 
 func hideFile(path string) {
 }
+
+func tellCommandNotToSpawnShell(_ *exec.Cmd) {
+}

seriallist_windows.go

@@ -5,6 +5,7 @@ import (
 	"github.com/mattn/go-ole"
 	"github.com/mattn/go-ole/oleutil"
 	"os"
+	"os/exec"
 	"regexp"
 	"strings"
 	"sync"
@@ -232,3 +233,7 @@ func convertByteArrayToUint16Array(b []byte, mylen uint32) []uint16 {
 	}
 	return ret
 }
+
+func tellCommandNotToSpawnShell(oscmd *exec.Cmd) {
+	oscmd.SysProcAttr = &syscall.SysProcAttr{HideWindow: true}
+}