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#!/bin/sh
volume() {
volume="$(wpctl get-volume @DEFAULT_AUDIO_SINK@)"
volume="$(dc -e "${volume#Volume:\ } 100 * p")"
volume="${volume%.*}"
if [ "$volume" -eq 0 ]; then
symbol=
elif [ "$volume" -le 50 ]; then
symbol=
else
symbol=
fi
printf '%s %d%%' "$symbol" "$volume"
}
network() {
ssid="$(iwctl station wlan0 get-networks | awk -F' ' '/>/{print $3}')"
if [ -n "$ssid" ]; then
printf ' %s' "$ssid"
else
printf ' '
fi
}
brightness() {
printf ' %d%%' "$(brightctl)"
}
battery() {
cap="$(cat /sys/class/power_supply/BAT0/capacity)"
stat="$(cat /sys/class/power_supply/BAT0/status)"
symbol=
index=$(((cap-1)/10+1))
case "$stat" in
Discharging)
symbol="$(printf ' ' | cut -d' ' -f$index)"
;;
Charging)
symbol="$(printf ' ' | cut -d' ' -f$index)"
;;
Full)
symbol=
;;
esac
printf '%s %d%%' "$symbol" "$cap"
}
clock() {
printf ' %s' "$(date '+%b %-d %H:%M:%S')"
}
# Make the volume and brightness sections appear to update more often by
# heuristically detecting when the user is changing them.
last_vol=
last_brt=
sleep_for=1
while true; do
vol="$(volume)"
brt="$(brightness)"
if [ "$last_vol" != "$vol" ] || [ "$last_brt" != "$brt" ]; then
sleep_for=0.1
elif [ ${sleep_for%%.*} != 1 ]; then
sleep_for=$((sleep_for+0.1))
else
sleep_for=1
fi
printf '%s | %s | %s | %s | %s\n' \
"$vol" \
"$(network)" \
"$brt" \
"$(battery)" \
"$(clock)"
sleep $sleep_for
done
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