random-scripts/enable-displays-for-sleep

#!/usr/bin/env zsh

let just_list=0
local operation="--on"
local jq_filter_neg="| not"
local ignored=()

while getopts 'hldi:' name; do
    case "${name}" in
        h)
            echo 'enable-displays-for-sleep [-l] [-d] [-i]'
            echo '-d  disable instead of enable'
            echo '-l  print the list of display that would be changed'
            echo '-i  ignore display'
            echo 'By default, enable displays.'
            ;;
        l)
            just_list=1
            ;;
        d)
            jq_filter_neg=""
            operation="--off"
            ;;
        i)
            ignored+="${OPTARG}"
            ;;
    esac
done

SCRIPT=".[] | select(.enabled${jq_filter_neg}) | .name"

set -e
displays=("${(0)$(wlr-randr --json | jq --raw-output0 "${SCRIPT}")}")
set +e

displays=(${displays:|ignored})

if ((just_list)); then
    printf '%s\0' ${displays}
else
    flags=()
    for display in ${displays}; do
        flags+=(--output "${display}" "${operation}")
    done
    (( ${#flags} )) && wlr-randr ${flags}
fi