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Hide the deploy launcher console window on Windows #88

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Hide the deploy launcher console window on Windows #88

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17 changes: 16 additions & 1 deletion internal/runtime/native_windows.go
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Original file line number Diff line number Diff line change
Expand Up @@ -44,12 +44,25 @@ func (r *NativeRuntime) launchViaSchtasks(name string, command []string, logPath
return 0, fmt.Errorf("write launcher script: %w", err)
}

// Wrap the bat in a hidden-window VBS launcher so no cmd.exe console flashes
// on the interactive desktop. The bat's cmd is the engine process's parent
// and would otherwise stay visible for the whole life of the deployment.
// WScript.Shell.Run(cmd, 0, False) => window style 0 = hidden, no wait.
vbsPath := filepath.Join(r.logDir, name+"-launcher.vbs")
vbs := fmt.Sprintf("CreateObject(\"WScript.Shell\").Run \"\"\"%s\"\"\", 0, False\r\n", batPath)
if err := os.WriteFile(vbsPath, []byte(vbs), 0o644); err != nil {
os.Remove(batPath)
return 0, fmt.Errorf("write launcher vbs: %w", err)
}

// Create a one-time scheduled task with /it (interactive token).
taskName := "AIMA-deploy-" + name
trCmd := fmt.Sprintf("wscript.exe //B //Nologo \"%s\"", vbsPath)
createOut, err := exec.Command("schtasks", "/create", "/tn", taskName,
"/tr", batPath, "/sc", "once", "/st", "00:00", "/it", "/f").CombinedOutput()
"/tr", trCmd, "/sc", "once", "/st", "00:00", "/it", "/f").CombinedOutput()
if err != nil {
os.Remove(batPath)
os.Remove(vbsPath)
return 0, fmt.Errorf("schtasks create: %w (output: %s)", err, string(createOut))
}

Expand All @@ -58,6 +71,7 @@ func (r *NativeRuntime) launchViaSchtasks(name string, command []string, logPath
if err != nil {
exec.Command("schtasks", "/delete", "/tn", taskName, "/f").Run()
os.Remove(batPath)
os.Remove(vbsPath)
return 0, fmt.Errorf("schtasks run: %w (output: %s)", err, string(runOut))
}

Expand Down Expand Up @@ -92,6 +106,7 @@ func (r *NativeRuntime) launchViaSchtasks(name string, command []string, logPath
// Clean up scheduled task definition (engine process continues running).
exec.Command("schtasks", "/delete", "/tn", taskName, "/f").Run()
os.Remove(batPath)
os.Remove(vbsPath)

if pid == 0 {
return 0, fmt.Errorf("discover PID after schtasks launch: binary=%s port=%d", binaryName, port)
Expand Down
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