Launch

internal/oscmd/command.go

@@ -0,0 +1,23 @@
+package oscmd
+
+import (
+	"context"
+	"os/exec"
+)
+
+// Command creates an exec.Cmd with platform-specific defaults that are safe for
+// the GUI application. On Windows, the implementation hides child console
+// windows so helpers like powershell.exe, netsh.exe, route.exe, xray.exe, and
+// dnstt-client.exe do not flash a terminal window.
+func Command(name string, args ...string) *exec.Cmd {
+	cmd := exec.Command(name, args...)
+	applyPlatformOptions(cmd)
+	return cmd
+}
+
+// CommandContext is the context-aware version of Command.
+func CommandContext(ctx context.Context, name string, args ...string) *exec.Cmd {
+	cmd := exec.CommandContext(ctx, name, args...)
+	applyPlatformOptions(cmd)
+	return cmd
+}

internal/oscmd/command_other.go

@@ -0,0 +1,7 @@
+//go:build !windows
+
+package oscmd
+
+import "os/exec"
+
+func applyPlatformOptions(cmd *exec.Cmd) {}

internal/oscmd/command_windows.go

@@ -0,0 +1,17 @@
+//go:build windows
+
+package oscmd
+
+import (
+	"os/exec"
+	"syscall"
+)
+
+const createNoWindow = 0x08000000
+
+func applyPlatformOptions(cmd *exec.Cmd) {
+	cmd.SysProcAttr = &syscall.SysProcAttr{
+		HideWindow:    true,
+		CreationFlags: createNoWindow,
+	}
+}