g910-lights: Add keyboard light script

g910-lights

@@ -0,0 +1,176 @@
+#! /bin/bash
+#
+# g910 coloring service
+# Copyright (C) 2019 Vintage Salt <rehashedsalt@cock.li>
+#
+# Distributed under terms of the MIT license.
+#
+
+colorbase="002b36"
+
+colorblue="268bd2"
+colorgreen="859900"
+colormagenta="d33682"
+colorred="dc322f"
+coloryellow="b58900"
+
+# Basic functions
+log() {
+	[ -z "$1" ] && return 1
+	printf "g910: %s\\n" \
+		"$1"
+}
+rsleep() {
+	[ -z "$1" ] && return 1
+	exec 1023<> <(:)
+	read -t "$1" -u 1023
+	return 0
+}
+
+# Main loop
+loop-stats() {
+	while :; do
+		# CPU stats on F1 and G6
+		g910-led -kn f1 $colorblue
+		if (( $(grep 'cpu ' /proc/stat | awk '{usage=($2+$4)/($2+$4+$5)} END {print (usage > 0.75)}') )); then
+			g910-led -kn g6 $colorred
+		else
+			g910-led -kn g6 $colorgreen
+		fi
+		# Memory stats on F2 and G7
+		g910-led -kn f2 $colormagenta
+		if (( $(free | grep Mem | awk '{print ($3/$2 > 0.75)}') )); then
+			g910-led -kn g7 $colorred
+		else
+			g910-led -kn g7 $colorgreen
+		fi
+		# Root disk stats on F3 and G8
+		g910-led -kn f3 $coloryellow
+		if (( $(df --output=pcent / | tr -dc '0-9') > 75 )); then
+			g910-led -kn g8 $colorred
+		else
+			g910-led -kn g8 $colorgreen
+		fi
+		# Home disk stats on F4 and G9
+		g910-led -kn f4 $coloryellow
+		if (( $(df --output=pcent /home | tr -dc '0-9') > 75 )); then
+			g910-led -kn g9 $colorred
+		else
+			g910-led -kn g9 $colorgreen
+		fi
+
+		# Commit
+		g910-led -c
+
+		# Wait
+		rsleep 1
+	done
+}
+initloops() {
+	# i3wm integration
+	if pgrep i3 > /dev/null 2>&1; then
+		log "Coloring i3 related keys"
+		g910-led -k logo 000000
+		rsleep 0.025
+		g910-led -kn logo $colorred
+		g910-led -kn alt_left $colorred
+		g910-led -kn alt_right $colorred
+		g910-led -kn win_left $colorblue
+		g910-led -kn win_right $colorblue
+		g910-led -c
+	fi
+	# General loops
+	loop-stats &
+	log "Starting general stat display with PID $!"
+	wait
+}
+main() {
+	if ! command -v g910-led > /dev/null 2>&1; then
+		log "g910-led is not installed. Install it with the g810-led package"
+		exit 50
+	fi
+	if ! g910-led -a 000000 > /dev/null 2>&1; then
+		log "Could not find keyboard"
+		log "Ensure it is plugged in and that you have the proper udev rules set up"
+		log "See https://raw.githubusercontent.com/MatMoul/g810-led/master/udev/g810-led.rules"
+		exit 51
+	fi
+	log "Playing init animation"
+	log "Dimming all keys"
+	g910-led -a 000000
+	log "Flickering logo on"
+	rsleep 0.25
+	g910-led -k logo ffffff
+	rsleep 0.05
+	g910-led -k logo 000000
+	rsleep 0.025
+	g910-led -k logo ffffff
+	rsleep 0.025
+	g910-led -k logo 000000
+	rsleep 0.025
+	g910-led -k logo ffffff
+	rsleep 1
+
+	log "Flickering second logo on"
+	rsleep 0.025
+	g910-led -k logo2 $colorblue
+	rsleep 0.025
+	g910-led -k logo2 000000
+	rsleep 0.025
+	g910-led -k logo2 $colorred
+
+	log "Flickering G-keys on"
+	g910-led -g gkeys ffffff
+	rsleep 0.05
+	g910-led -g gkeys 000000
+	rsleep 0.025
+	g910-led -g gkeys 444444
+	rsleep 0.25
+
+	log "Flickering F-keys on"
+	g910-led -g fkeys 222222
+	rsleep 0.05
+	g910-led -g fkeys 333333
+	rsleep 0.025
+	g910-led -g fkeys 444444
+
+	log "Flickering keys on"
+	g910-led -g keys aaaaaa
+	rsleep 0.05
+	g910-led -g keys 888888
+	rsleep 0.15
+
+	log "Flickering numpad on"
+	g910-led -g numeric 888888
+
+	log "Flickering arrow keys on"
+	g910-led -g arrows 222222
+	rsleep 0.025
+	g910-led -g arrows 444444
+	rsleep 0.10
+
+	log "Flickering modifier keys on"
+	g910-led -g modifiers 444444
+	rsleep 0.025
+	g910-led -gn modifiers 888888
+	g910-led -kn menu 000000
+	g910-led -c
+	rsleep 0.05
+
+	log "Flickering multimedia keys on"
+	g910-led -g multimedia ffffff
+	rsleep 0.025
+	g910-led -g multimedia 888888
+
+	log "Flickering functions on"
+	g910-led -g functions aaaaaa
+	rsleep 0.025
+	g910-led -g functions 444444
+
+	g910-led -k logo2 $colorgreen
+	# Set up listeners as background processes
+	initloops
+}
+
+main "$@"
+