66 lines
1.5 KiB
Bash
66 lines
1.5 KiB
Bash
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#!/usr/bin/bash
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SAVE_FILE="${HOME}/.cache/brightness-control-cache"
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notify-brightness() {
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brightness="$(brightnessctl -m | sed 's/,/ /g' | awk '{print $4}' | tr -d '\n' | tr -d '%')"
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notify-send -h string:x-canonical-private-synchronous:brightness-control-sh -t 4000 -u normal -a "Brightness" -h int:value:"$brightness" "$brightness%"
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}
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save-brightness() {
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brightness="$(brightnessctl -m | sed 's/,/ /g' | awk '{print $4}' | tr -d '\n' | tr -d '%')"
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printf '%d' "${brightness}" >"${SAVE_FILE}"
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}
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restore-brightness() {
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if [ ! -e "${SAVE_FILE}" ]; then
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echo "brightness-control.sh: error: save file at \"${SAVE_FILE}\" not found" >&2
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exit 1
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fi
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brightness="$(cat "${SAVE_FILE}")"
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brightnessctl s "${brightness}%"
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}
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print-usage() {
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echo 'usage: brightness-control.sh [up|down|set|restore|display] <ammount>' 1>&2
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exit 1
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}
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if [ "$#" -lt 1 ]; then
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print-usage
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fi
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ammount='5%'
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value='50%'
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if [ "${#}" -gt 1 ]; then
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ammount="${2}"
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value="${2}"
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fi
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case "${1}" in
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'up')
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brightnessctl s "+${ammount}" > /dev/null
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notify-brightness
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save-brightness
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;;
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'down')
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brightnessctl s "${ammount}-" > /dev/null
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notify-brightness
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save-brightness
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;;
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'set')
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brightnessctl s "${value}" > /dev/null
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notify-brightness
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save-brightness
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;;
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'display')
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notify-brightness
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;;
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'restore')
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restore-brightness
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;;
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*)
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print-usage
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;;
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esac
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