#!/bin/sh -e
#
# battery: print the state of the battery
#
# Copyright (C) 2009 Raphaël Pinson.
# Copyright (C) 2011-2014 Dustin Kirkland
#
# Authors: Raphaël Pinson <raphink@ubuntu.com>
# Dustin Kirkland <kirkland@byobu.org>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, version 3 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
__battery_detail() {
local bat
for bat in /proc/acpi/battery/*; do
cat "$bat/info"
cat "$bat/state"
done
# FIXME: do the same thing with the /sys interface
}
__battery() {
local bat line present sign state percent full rem color bcolor
# Linux support
present=""; full="0"; rem="0"; state=""
for bat in $BATTERY /sys/class/power_supply/* /proc/acpi/battery/*; do
case "$bat" in
/sys/*)
if [ -r "$bat/uevent" ]; then
. "$bat/uevent"
case "$POWER_SUPPLY_NAME" in AC|ac|Ac|aC) continue ;; esac
present="$POWER_SUPPLY_PRESENT"
# Some use "CHARGE", others use "ENERGY", still others "CAPACITY"
[ -n "$POWER_SUPPLY_CHARGE_FULL" ] && full=$((POWER_SUPPLY_CHARGE_FULL+full))
[ -n "$POWER_SUPPLY_ENERGY_FULL" ] && full=$((POWER_SUPPLY_ENERGY_FULL+full))
[ -n "$POWER_SUPPLY_CHARGE_NOW" ] && rem=$((POWER_SUPPLY_CHARGE_NOW+rem))
[ -n "$POWER_SUPPLY_ENERGY_NOW" ] && rem=$((POWER_SUPPLY_ENERGY_NOW+rem))
if [ -n "$POWER_SUPPLY_CAPACITY" ] && [ ! -n "$POWER_SUPPLY_ENERGY_NOW" ] && [ ! -n "$POWER_SUPPLY_CHARGE_NOW" ]; then
rem="$POWER_SUPPLY_CAPACITY" && full="100"
fi
[ "$POWER_SUPPLY_STATUS" != "Unknown" ] && state="$POWER_SUPPLY_STATUS"
fi
;;
/proc/*)
[ -f "$bat/info" ] || continue
while read line; do
set -- ${line}
case "$line" in
present:*)
# make sure that this battery is present
[ "$2" = "no" ] && continue 2
present="$2";;
last\ full\ capacity:*) full="$4";;
esac
[ -n "$present" -a -n "$full" ] && break
done < "${bat}/info"
while read line; do
set -- ${line}
case "$line" in
remaining\ capacity:*) rem="$3";;
charging\ state:*) state="$3";;
esac
[ -n "$rem" -a -n "$state" ] && break
done < "$bat/state"
[ -n "$full" ] && [ -n "$rem" ] && [ -n "$state" ] && break
;;
esac
done
# Mac OS X support
if eval $BYOBU_TEST /usr/sbin/ioreg >/dev/null 2>&1; then
# MacOS support
local key
for key in CurrentCapacity MaxCapacity ExternalChargeCapable FullyCharged; do
line=$(/usr/sbin/ioreg -n AppleSmartBattery -w0 | grep $key | sed -e 's/|//g' | awk '{ print $3 }')
case "$key" in
CurrentCapacity) rem="$line";;
MaxCapacity) full="$line";;
ExternalChargeCapable)
if [ "${line}" = "Yes" ]; then
state="charging"
elif [ "${line}" = "No" ]; then
state="discharging"
fi
;;
FullyCharged)
if [ "${line}" = "Yes" ]; then
state="charged"
fi
;;
esac
done
fi
if [ $rem -ge 0 ] && [ $full -gt 0 ]; then
percent=$(((100*$rem)/$full))
if [ "$percent" -lt 33 ]; then
color="R w"
bcolor="b R w"
elif [ "$percent" -lt 67 ]; then
color="Y k"
bcolor="b Y k"
else
color="G k"
bcolor="b G k"
fi
percent="${percent}${PCT}"
# Convert state to lower case
state=$(printf "%s" "$state" | $BYOBU_SED 'y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/')
case $state in
charging) sign="+" ;;
discharging) sign="-" ;;
charged|unknown|full) sign="=" ;;
*) sign="$state" ;;
esac
if [ -z "$percent" ]; then
rm -f "$BYOBU_RUN_DIR/status.$BYOBU_BACKEND/battery"*
return
fi
color $bcolor; printf "%s" "$percent"; color -; color $color; printf "%s" "$sign"; color --
fi
}
# vi: syntax=sh ts=4 noexpandtab
Mini Shell