87 lines
2.7 KiB
Bash
Executable File
87 lines
2.7 KiB
Bash
Executable File
#!/usr/bin/env sh
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######################################################################
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# @author : swytch (adapted from Luke Smith - lukesmith.xyz)
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# @file : dwmbar
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# @license : MIT
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# @created : Wednesday May 20, 2020 18:14:14 CEST
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#
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# @description : set the statusbar in `dwm`
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# @dependencies : `xsetroot`
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######################################################################
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# Handle SIGTRAP signals sent by refbar to update the status bar immediately.
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trap 'update' 5
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delim=" | " # Set the delimiter character.
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status() { \
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# Get the volume of ALSA's master volume output.
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level="$(amixer sget Master | awk -F "[][]" ' { printf "%s", $2 }' | awk -F "%" '{printf $1}')"
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muted="$(amixer sget Master | awk -F "[][]" '/%/ { printf "%4s", $4 }' | awk '{printf $1}')"
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if [ "$muted" = "off" ]; then
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printf " 婢 ---"
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else
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printf " 墳 %3d%%" $level
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fi
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printf "$delim"
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# Wifi quality percentage and icon if ethernet is connected.
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wifi="$(grep "^\s*w" /proc/net/wireless | awk '{ printf int($3 * 100 / 70) }')"
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[ $wifi -ne 0 ] && printf "索 %3d%%" $wifi || printf "索 ---"
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eth="$(cat /sys/class/net/enp0s25/operstate)"
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if [ "up" = "$eth" ]; then
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printf " / "
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fi
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printf "$delim"
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# Will show all batteries with approximate icon for remaining power.
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# Or show that the computer is plugged to a power source
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# In any case, show the remaining battery percentage
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AC_ON="$(cat /sys/class/power_supply/AC/online)"
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for x in /sys/class/power_supply/BAT?/capacity;
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do
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if [ $AC_ON -eq 0 ]; then
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case "$(cat "$x")" in
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10[1-9]) printf " %3d%%" ;;
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100|9[0-9]|8[0-9]) printf " %3d%%" $(cat "$x") ;;
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7[0-9]|6[0-9]) printf " %3d%%" $(cat "$x") ;;
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5[0-9]|4[0-9]) printf " %3d%%" $(cat "$x") ;;
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3[0-9]|2[0-9]) printf " %3d%%" $(cat "$x") ;;
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*) printf " %3d%%" $(cat "$x") ;;
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esac
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else
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printf " %3d%%" $(cat "$x")
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fi
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done && printf "$delim"
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# Date and time.
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date '+%b. %d - %I:%M%p'
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}
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update() { \
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# So all that big status function was just a command that quicking gets
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# what we want to be the statusbar. This xsetroot command is what sets
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# it. Note that the tr command replaces newlines with spaces. This is
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# to prevent some weird issues that cause significant slowing of
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# everything in dwm. Note entirely sure of the cause, but again, the tr
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# command easily avoids it.
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xsetroot -name "$(status | tr '\n' ' ')" &
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wait
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}
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while :; do
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update
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# Sleep for a minute after changing the status bar before updating it
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# again. We run sleep in the background and use wait until it finishes,
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# because traps can interrupt wait immediately, but they can't do that
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# with sleep.
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sleep 60 &
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wait
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done
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