41 lines
1.6 KiB
Bash
41 lines
1.6 KiB
Bash
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#!/bin/bash
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# This program uses upower to check the battery percentage every 5 seconds
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# Dependencies: upower, libnotify, alsa-utils * mako?? *
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# Havent tested without mako, but it should work without it...
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# Defaults
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THRESHOLD=20 # threshold percentage to send a notification
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NOTIFICATION_SENT=0
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while true; do
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# Calculate the current percentage and round to whole number
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CURRENT_PERCENTAGE=$(upower -i $(upower -e | grep 'BAT') | awk '/percentage/ {print $2}' | tr -d '%')
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STATUS=$(upower -i $(upower -e | grep 'BAT') | grep -oP 'state:\s+\K\w+')
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# Convert the status to an integer for easier comparison later
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case "$STATUS" in
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"charging") STATUS=1 ;;
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"discharging") STATUS=0 ;;
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*) STATUS=-1 ;;
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esac
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# Send a notification if
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# 1. The battery is discharging
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# 2. The current percentage is less than the threshold
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# 3. A notification hasn't been sent yet
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if [ "$CURRENT_PERCENTAGE" -lt "$THRESHOLD" ] && [ "$STATUS" -eq 0 ] && [ "$NOTIFICATION_SENT" -eq 0 ]; then
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# Send the notification and play a sound
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notify-send -u low -a "BatteryNotification" -t 5000 "Low battery. Please plug in."
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#This is for playing a sound, you can comment it out if you don't want it or change it to something else
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ffplay -v 0 -nodisp -autoexit notification.mp3 > /dev/null 2>&1
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# IMPORTANT: Set the notification sent flag to 1 so we don't send another notification until the battery is charged
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NOTIFICATION_SENT=1
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fi
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# Reset the notification sent flag if the battery is charging
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if [ $STATUS -eq 1 ]; then
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NOTIFICATION_SENT=0
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fi
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sleep 5
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done
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