sys.sh: add support for openbsd

sys.sh

@@ -1,6 +1,8 @@
 #!/bin/sh
 # System info for Tmux
 
+
+
 TEMP_PATH="/sys/class/thermal/thermal_zone0"
 BATT_PATH="/sys/class/power_supply/BAT0/"
 
@@ -16,8 +18,16 @@ fi
 if [ -d ${BATT_PATH} ]; then
 	max_charge="$(< ${BATT_PATH}/energy_full)"
 	cur_charge="$(< ${BATT_PATH}/energy_now)"
+
+elif [[ "$(uname -s)" == "OpenBSD" ]]; then
+	cmd="sysctl -n hw.sensors.acpibat0"
+	max_charge="$(${cmd}.watthour0 | cut -d. -f1)"
+	cur_charge="$(${cmd}.watthour3 | cut -d. -f1)"
+fi
+
+if [[ -n ${max_charge} ]] && [[ -n ${cur_charge} ]]; then
 	bat="$((100 * $cur_charge / $max_charge))"
-	echo -n "↯${bat}% | "
+	echo -n "${bat}% | "
 fi
 
 # Print date