44 lines
1.1 KiB
Bash
Executable file
44 lines
1.1 KiB
Bash
Executable file
#!/bin/bash
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set -euo pipefail
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# Legacy battery monitor. I'm writing a better one, I should publish it some
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# time.
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level_critical=5
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level_low=10
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level_low_max_backlight=8
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notif(){
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notify-send -a "Battery" "$@"
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}
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lower_backlight() {
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[ $(xbacklight -get) -le $level_low_max_backlight ] || xbacklight -set $(level_low_max_backlight)
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}
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while true; do
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now=$(cat /sys/class/power_supply/BAT0/charge_now 2>/dev/null)
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full=$(cat /sys/class/power_supply/BAT0/charge_full 2>/dev/null)
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if [ ! -z $now ] && [ ! -z $full ]; then
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percentage=$(( 100 * now / full ))
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echo "Current level: $percentage"
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if [[ "$(cat /sys/class/power_supply/BAT0/status 2>/dev/null)" != "Charging" ]]; then
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if [ $percentage -lt $level_critical ]; then
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notif -u "critical" "Power level critical" "Less than $percentage% remaining."
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lower_backlight
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elif [ $percentage -lt $level_low ]; then
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notif -t 59000 -u "critical" "Power supplies running low" "Less than $percentage% remaining."
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lower_backlight
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fi
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else
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if [ $percentage -ge 98 ]; then
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notif -t 10000 -u low "Fully charged" "Unplug charger."
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fi
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fi
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fi
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sleep '1m'
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done
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