105 lines
2.5 KiB
Bash
Executable File
105 lines
2.5 KiB
Bash
Executable File
#!/bin/bash
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# INIT
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echo "$$" > "$HOME/.cache/pidofbar"
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# MODULES
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update_crypto() {
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local c="$(crypto)"
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[ -n c ] && crypto="$c |"
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}
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update_cpu() {
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cpu=" $(grep -o "^[^ ]*" /proc/loadavg) |"
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}
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update_memory() {
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memory=" $(free -h | sed -n '2s/\([^ ]* *\)\{2\}\([^ ]*\).*/\2/p') |"
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}
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update_bat() {
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local dir; dir="$(echo /sys/class/power_supply/BAT*/ | sort -n | tail -n1)"
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bat="$(grep -q Charging "$dir/status" && printf '' || printf '')"
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bat="$bat $(cat "$dir/capacity")% |"
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}
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update_vol() {
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local v; v="$(wpctl get-volume '@DEFAULT_AUDIO_SINK@')"
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if grep -q 'MUTED' <<< "$v"; then
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vol='🔇'
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else
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vol=" $((10#$(tr -dc '0-9' <<< "$v")))"
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fi
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vol="$vol |"
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}
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update_wlp() {
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local sig; sig="$(grep wlp /proc/net/wireless | awk '{print $3 * 100}')"
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local ssid; ssid="$(nmcli device wifi show-password | grep SSID | sed 's/SSID: //')"
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[ -z "$ssid" ] && wlp='⚠' && return
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[ -z "$sig" ] && sig=0
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# https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/blob/d9b06a95/src/libnmc-base/nm-client-utils.c#L628
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{ [ "$sig" -gt 5600 ] && wlp="▂▄▆█ $ssid"; } ||
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{ [ "$sig" -gt 3850 ] && wlp="▂▄▆_ $ssid"; } ||
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{ [ "$sig" -gt 1650 ] && wlp="▂▄__ $ssid"; } ||
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{ [ "$sig" -gt 275 ] && wlp="▂___ $ssid"; } ||
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{ wlp="____ $ssid"; }
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wlp="$wlp |"
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}
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update_time() {
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time="$(date "+%a %m/%d %R")"
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}
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# modules that don't update on their own need to be run at the start for getting their initial value
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while [ -z "$(wpctl get-volume '@DEFAULT_AUDIO_SINK@' 2> /dev/null)" ]; do
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sleep 1
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done
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update_vol
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reload_bar() {
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sec=0
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}
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display() {
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"${DISPLAYCMD[@]}" "$crypto $cpu $memory $vol $wlp $bat $time"
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}
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# SIGNALING
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# trap '<function>;display' 'RTMIN+n'
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trap 'reload_bar;display' 'RTMIN'
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trap 'update_vol;display' 'RTMIN+1'
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trap 'update_crypto;display' 'RTMIN+2'
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# to update it from external commands
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## kill -m "$(cat ~/.cache/pidofbar)"
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# where m = 34 + n
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if [ "$XDG_SESSION_TYPE" = wayland ]; then
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DISPLAYCMD=(echo)
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else
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DISPLAYCMD=(xsetroot -name)
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fi
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# crypto & > /tmp
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# sleep 5 && cat /tmp
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sec=0
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while true; do
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[ "$((sec % 300))" = 0 ] && update_crypto
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[ "$((sec % 10))" = 0 ] && {
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update_time
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update_cpu
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update_memory
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update_bat
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update_wlp
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display
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}
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sleep "$(awk "BEGIN {s=$(date '+%S.%N'); print 10 - s % 10}")" & wait
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sec="$((sec + 10))"
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done
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