The easiest way to detect if your program is running interactively is to
use https://github.com/mattn/go-isatty and test if stdin (fd 0) is
connected to a terminal. The Elvish shell uses this function to handle both
Unix and Windows:
// IsATTY determines whether the given file is a terminal.
func IsATTY(fd uintptr) bool {
return isatty.IsTerminal(fd) || isatty.IsCygwinTerminal(fd)
}
On Thu, Jun 8, 2023 at 11:19 AM Rich <rma...@gmail.com> wrote:
> Hi,
>
> I have a program I am writing that stops and asks the user for input, in
> this case it's a passphrase used to encrypt output.
>
> I want the program to also be able to be used in a script, and if in a
> script use a predefined value as the passphrase. What I'd like to know is
> how to detect if running in a script or not. I've tried something like
> this:
> runPid := os.Getpid()
> parPid := os.Getppid()
> val := runPid - parPid //normally I check if runPid is > parPid in my code.
> if val < 20 {
> fmt.Println("Not running in a script")
> }
> This works, but only if the script ran quickly. Wondering if there is a
> better way to do this?
>
> --
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> .
>
--
Kurtis Rader
Caretaker of the exceptional canines Junior and Hank
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