Add battery.sh

blocks.def/battery.sh

@@ -0,0 +1,17 @@
+#!/bin/sh
+
+battery=/sys/class/power_supply/BAT0
+
+case "$(cat "$battery/status" 2>&1)" in
+    "Full") status="⚡" ;;
+    "Discharging") status="🔋" ;;
+    "Charging") status="🔌" ;;
+    "Not charging") status="🛑" ;;
+    "Unknown") status="♻️" ;;
+    *) exit 1 ;;
+esac
+
+capacity="$(cat "$battery/capacity" 2>&1)"
+capacity=$(echo "$capacity/88*100" | bc -l)
+
+printf "%s %.0f%%" "$status" "$capacity"