sbar

.local/bin/sbar

@@ -0,0 +1,77 @@
+#!/bin/env sh
+
+# INIT
+printf "$$" > ~/.cache/pidofbar
+sec=0
+
+# MODULES
+update_cpu () { 
+	cpu="  $(grep -o "^[^ ]*" /proc/loadavg )" 
+}
+
+update_memory () { 
+	memory=" $(free -h | sed -n "2s/\([^ ]* *\)\{2\}\([^ ]*\).*/\2/p")"
+}
+
+update_time () { 
+	time="$(date "+[ %a %d %b ] [ %I:%M %P ]")" 
+}
+
+update_weather () { 
+	weather=" $(curl -s "wttr.in?format=1" | awk '{printf $2}')" 
+}
+
+# update_bat () { 
+# 	# you might need to change the path depending on your device
+# 	read -r bat_status </sys/class/power_supply/BAT1/status
+# 	read -r bat_capacity </sys/class/power_supply/BAT1/capacity
+# 	bat="$bat_status $bat_capacity%"
+# }
+
+update_vol () { 
+	vol="$([ "$(pamixer --get-mute)" = "false" ] && printf ' ' || printf ' ')$(pamixer --get-volume)%"
+}
+
+# For calcurse users, refer https://github.com/pystardust/automeet
+#update_event () { 
+#	event="$(calcurse -n | sed 1d | \
+#		sed -E "s_^ *\[(.*):(.*)\] ([^\t]*)\t?.*_[\1h \2m->\3]_")" 
+#	[ "[]" = "$event" ] && event=""
+#}
+
+
+# modules that don't update on their own need to be run at the start for getting their initial value
+update_vol
+
+display () { 
+	#printf "%s\n" " $event [$weather] [$memory $cpu] [$bat] [$backlight] [$vol] $time "
+	xsetroot -name " [ $weather ] [ $memory  $cpu ] [ $vol ] $time "
+}
+
+# SIGNALLING
+# trap	"<function>;display"		"RTMIN+n"
+trap	"update_vol;display"		"RTMIN"
+# trap	"update_bat;display" 		"RTMIN+2"
+# to update it from external commands
+## kill -m "$(cat ~/.cache/pidofbar)"
+# where m = 34 + n
+
+while true
+do
+	sleep 1 & wait && { 
+		# to update item ever n seconds with a offset of m
+		## [ $((sec % n)) -eq m ] && udpate_item
+		[ $((sec % 5 )) -eq 0 ] && update_time 	# update time every 5 seconds
+		[ $((sec % 5)) -eq 0 ] && update_cpu 	# update cpu every 15 seconds
+		[ $((sec % 15)) -eq 0 ] && update_memory
+		# [ $((sec % 60)) -eq 0 ] && update_bat
+		[ $((sec % 3600)) -eq 2 ] && update_weather 
+		#[ $((sec % 300)) -eq 1 ] && update_event
+
+		# how often the display updates ( 5 seconds )
+		[ $((sec % 5 )) -eq 0 ] && display
+		sec=$((sec + 1))
+	}
+done 
+
+