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raphapr/battery_warning

Created February 10, 2017 19:46
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  1. raphapr created this gist Feb 10, 2017.
    65 changes: 65 additions & 0 deletions battery_warning
    View file
    Original file line number Diff line number Diff line change
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    #! /bin/bash

    ########################################
    # Check if script already running

    lf=/tmp/battery_warning.pidlock
    # create empty lock file if none exists
    touch $lf
    read lastPID < $lf
    # if lastPID is not null and a process with that pid exists , exit
    #[ ! -z "$lastPID" -a -d /proc/$lastPID ] && exit
    [ ! -z "$lastPID" -a -d /proc/$lastPID ] && kill $lastPID
    # save my pid in the lock file
    echo $$ > $lf

    ########################################

    SLEEP_TIME=5 # Default time between checks.
    SAFE_PERCENT=30 # Still safe at this level.
    DANGER_PERCENT=20 # Warn when battery at this level.
    CRITICAL_PERCENT=10 # Hibernate when battery at this level.

    export DISPLAY=:0.0

    function notify
    {
    killall notify-osd
    notify-send "Bateria baixa" "Conecte o notebook a um adaptador!" -i /usr/share/icons/Numix/scalable/status/battery-empty-symbolic.svg
    }

    function notify_n_hibernate
    {
    killall notify-osd
    notify-send "Alerta! " "O computador irá hibernar dentro de 60 segundos" -i /usr/share/icons/Numix/scalable/status/battery-empty-symbolic.svg
    sleep 60
    if [[ -n $(acpi -b | tail -n 1 | grep -i discharging) ]]; then # Se o notebook continuar fora da tomada, hiberna.
    i3exit hibernate
    fi
    }

    while [ true ]; do
    if [[ -n $(acpi -b | tail -n 1 | grep -i discharging) ]]; then
    #pm-powersave true
    rem_bat=$(acpi -b | tail -n 1 | grep -Eo "[0-9]+%" | grep -Eo "[0-9]+")

    if [[ $rem_bat -gt $SAFE_PERCENT ]]; then
    SLEEP_TIME=10
    else
    SLEEP_TIME=5
    if [[ $rem_bat -le $DANGER_PERCENT ]]; then
    SLEEP_TIME=2
    notify
    fi
    if [[ $rem_bat -le $CRITICAL_PERCENT ]]; then
    notify_n_hibernate
    SLEEP_TIME=1
    fi
    fi
    else
    SLEEP_TIME=10
    fi

    sleep ${SLEEP_TIME}m

    done