/usr/lib/byobu/battery is in byobu 5.125-0ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 | #!/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
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