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battery.sh
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battery.sh
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#!/usr/bin/env bash
export LC_ALL=en_US.UTF-8
current_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source "$current_dir"/utils.sh
linux_acpi() {
arg=$1
BAT=$(ls -d /sys/class/power_supply/BAT* | head -1)
if [ ! -x "$(which acpi 2>/dev/null)" ]; then
case "$arg" in
status) cat "$BAT"/status ;;
percent) cat "$BAT"/capacity ;;
esac
else
case "$arg" in
status) acpi | cut -d: -f2- | cut -d, -f1 | tr -d ' ' ;;
percent) acpi | cut -d: -f2- | cut -d, -f2 | tr -d '% ' ;;
esac
fi
}
battery_percent() {
case $(uname -s) in
Linux)
percent=$(linux_acpi percent)
[ -n "$percent" ] && echo " $percent"
;;
Darwin) echo $(pmset -g batt | grep -Eo '[0-9]?[0-9]?[0-9]%' | sed 's/%//g') ;;
FreeBSD) echo $(apm | sed '8,11d' | grep life | awk '{print $4}') ;;
CYGWIN* | MINGW32* | MSYS* | MINGW*) ;; # TODO - windows compatability
esac
}
battery_status() {
case $(uname -s) in
Linux) status=$(linux_acpi status) ;;
Darwin) status=$(pmset -g batt | sed -n 2p | cut -d ';' -f 2 | tr -d " ") ;;
FreeBSD) status=$(apm | sed '8,11d' | grep Status | awk '{printf $3}') ;;
CYGWIN* | MINGW32* | MSYS* | MINGW*) ;;
esac
case $status in
discharging | Discharging) echo '' ;;
high) echo '' ;;
charging) echo '' ;;
*) echo '' ;;
esac
}
battery_label() {
if [ "$bat_perc" -gt 90 ]; then
echo " "
elif [ "$bat_perc" -gt 75 ]; then
echo " "
elif [ "$bat_perc" -gt 50 ]; then
echo " "
elif [ "$bat_perc" -gt 25 ]; then
echo " "
elif [ "$bat_perc" -gt 10 ]; then
echo " "
else
echo " "
fi
}
main() {
bat_stat=$(battery_status)
bat_perc="$(battery_percent)"
bat_label="$(battery_label)"
if [ -z "$bat_stat" ]; then
echo "$bat_label $bat_perc%"
elif [ -z "$bat_perc" ]; then
echo "$bat_stat $bat_label"
else
echo "$bat_stat $bat_label $bat_perc%"
fi
}
main