execx

func Harden ¶

func Harden(cmd *exec.Cmd, waitDelay time.Duration)

Harden makes a command safe to kill: the cancel signal reaches the whole process group (a killed git or gh can leave helpers behind that inherit the output pipe and would otherwise survive), and WaitDelay force-closes the pipes so Wait can never block on a descriptor a surviving process still holds after the command itself is gone.