1 files changed, 60 insertions, 0 deletions
diff --git a/scripts/battery.sh b/scripts/battery.sh
new file mode 100755
index 0000000..05ac440
--- /dev/null
+++ b/scripts/battery.sh
@@ -0,0 +1,60 @@
+#!/bin/bash
+# dotfiles -- scripts/battery.sh
+# author: johannst
+
+bat="${BLOCK_INSTANCE:-BAT0}"
+[[ ! -f "/sys/class/power_supply/$bat/type" ]] && exit 0
+
+show_bat_use_design_capacity=0
+show_bat_status=0
+show_bat_color_output=0
+for arg in "$@"; do
+	case $arg in
+		-dc | --design_capacity) show_bat_use_design_capacity=1
+			;;
+		-s | --status) show_bat_status=1
+			;;
+		-c | --color) show_bat_color_output=1
+			;;
+		*) # ignore unknown
+			;;
+	esac
+done
+
+# Unknown, Charging, Discharging, Full
+BAT_STATUS=$(cat /sys/class/power_supply/$bat/status)
+BAT_NOW=$(cat /sys/class/power_supply/$bat/charge_now)
+[[ $show_bat_use_design_capacity == 1 ]] \
+	&& BAT_FULL=$(cat /sys/class/power_supply/$bat/charge_full_design) \
+	|| BAT_FULL=$(cat /sys/class/power_supply/$bat/charge_full)
+
+BAT_POWER=$(echo $BAT_NOW $BAT_FULL | awk '{ print int($1 * 100 / $2); }')
+
+OUT="$BAT_POWER%"
+[[ $show_bat_status == 1 ]] && \
+	case $BAT_STATUS in
+		Charging) OUT="$OUT (Charging)"
+			;;
+		*) # only show charging state for now
+			;;
+	esac
+
+echo "$OUT"
+
+[[ $show_bat_color_output == 1 ]] && \
+	# print twice, else colors not working?!
+	echo "$OUT"
+	if [[ $BAT_POWER -ge 80 ]]; then
+		# green
+		echo "#00FF00"
+	elif [[ $BAT_POWER -ge 60 ]]; then
+		# yellow
+		echo "#FFF600"
+	elif [[ $BAT_POWER -ge 40 ]]; then
+		# dark orange
+		echo "#FFAE00"
+	else
+		# red
+		echo "#FF0000"
+	fi
+