Toggle Sleep on MacOS

toggle-sleep

#!/bin/zsh
#
# toggle-sleep.sh  – Disable system sleep when on AC power; re-enable on battery.
#
# Requires: sudo privileges for `pmset`.  Run `sudo visudo` and add a NOPASSWD
# rule if you want it to run unattended:
#     youruser ALL=(ALL) NOPASSWD: /usr/bin/pmset
#
# Install with:
#    */1 * * * * /opt/homebrew/bin/zsh -i -c '/Users/thomas/.local/bin/toggle-sleep > /Users/thomas/.local/log/toggle-sleep.log'
#

# Check current power source
power_source=$(pmset -g batt | awk -F"'" '/Now drawing from/{print $2}')

echo "Current time: $(date)"
echo "Power source: $power_source"

case "$power_source" in
  "AC Power")
    # Plugged in – disable sleep
    sudo pmset -a disablesleep 1
    echo "On AC power sleep disabled"
    ;;
  "Battery Power")
    # On battery – allow sleep again
    sudo pmset -a disablesleep 0
    echo "On battery sleep enabled"
    ;;
esac