80 lines
2.1 KiB
Bash
Executable File
80 lines
2.1 KiB
Bash
Executable File
#!/bin/env sh
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# INIT
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printf "$$" > ~/.cache/pidofbar
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sec=0
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# MODULES
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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 --si | sed -n "2s/\([^ ]* *\)\{2\}\([^ ]*\).*/\2/p")"
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}
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update_time () {
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time="$(date "+[ %a %d %b ] [ %I:%M %P ]")"
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}
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update_music () {
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music="[ $(sb-music) ] "
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}
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# update_bat () {
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# # you might need to change the path depending on your device
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# read -r bat_status </sys/class/power_supply/BAT1/status
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# read -r bat_capacity </sys/class/power_supply/BAT1/capacity
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# bat="$bat_status $bat_capacity%"
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# }
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update_vol () {
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vol="$([ "$(pamixer --get-mute)" = "false" ] && printf ' ' || printf ' ')$(pamixer --get-volume)%"
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}
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# For calcurse users, refer https://github.com/pystardust/automeet
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#update_event () {
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# event="$(calcurse -n | sed 1d | \
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# sed -E "s_^ *\[(.*):(.*)\] ([^\t]*)\t?.*_[\1h \2m->\3]_")"
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# [ "[]" = "$event" ] && event=""
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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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# update_vol
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display () {
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#printf "%s\n" " $event [$memory $cpu] [$bat] [$backlight] [$vol] $time "
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xsetroot -name "$music[ $vol ] [ $memory $cpu ] $time "
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}
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# SIGNALLING
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# trap "<function>;display" "RTMIN+n"
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trap "update_vol;display" "RTMIN"
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trap "update_music;display" "RTMIN+10"
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# trap "update_bat;display" "RTMIN+2"
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# to update it from external commands
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## kill -m "$(cat ~/.cache/pidofbar)"
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# where m = 34 + n
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while true
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do
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sleep 1 & wait && {
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# to update item ever n seconds with a offset of m
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## [ $((sec % n)) -eq m ] && udpate_item
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[ $((sec % 5 )) -eq 0 ] && update_time # update time every 5 seconds
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[ $((sec % 5 )) -eq 0 ] && update_vol # update vol every 5 seconds
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[ $((sec % 5 )) -eq 0 ] && update_music # update music every 5 seconds
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[ $((sec % 5)) -eq 0 ] && update_cpu # update cpu every 15 seconds
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[ $((sec % 5)) -eq 0 ] && update_memory
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# [ $((sec % 60)) -eq 0 ] && update_bat
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#[ $((sec % 300)) -eq 1 ] && update_event
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# how often the display updates ( 5 seconds )
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[ $((sec % 5 )) -eq 0 ] && display
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sec=$((sec + 1))
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}
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done
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