feat: improve handling ctrl+c and timeouts

[caarlos0]

• make ctrl+c interrupt and exit properly
• handle timeouts with a context.Context and exit properly

[ccoVeille]

I know it's a draft, but I looked at it

[aymanbagabas]

Looks good, few questions

[bashbunni]

This works great for the Gum commands, though when working with a script (e.g. demo.sh) hitting ctrl+c skips the current gum command, but it would be great to be able to quit the whole script with ctrl+d. The changes here work as expected :) would be great to hear your thoughts on how we could exit the script though without having to skip all of the remaining gum commands

[caarlos0]

@bashbunni it does work, but the script might need the set -euo pipefail options, e.g.:

#!/bin/bash
set -euo pipefail
time=$(gum input --placeholder "Timeout (in minutes)")
gum spin --timeout "${time}m" --show-output -- ping -c 50 google.com
echo "Done"

• -e: exits on non-zero status
• -u: errors on unset variables (not necessary for this example though)
• -o pipefail: if a command in a pipe fails, returns its status code

these options are generally good to have on any scripts as they help preventing errors.