Add charge-notify.sh

charge-notify.sh

@@ -0,0 +1,89 @@
+#! /bin/bash
+#
+# Script to notify when battery is outside levels - time to plug charger.
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program.  If not, see <https://www.gnu.org/licenses/>.#
+#
+# Source: https://linoxide.com/remind-unplug-charging-laptop-arch-linux
+#
+# https://forum.manjaro.org/t/set-up-an-alarm-notification-when-battery-reaches-full-charge/92331
+#
+# @linux-aarhus - root.nix.dk
+#
+# 2021-11-27
+# 2021-11-28 revised - checks not updating
+#                    - fix variable check on all levels
+# 2023-03-14         - added sound option
+
+### SETTINGS
+# check interval (seconds)
+INTERVAL=30
+
+# example battery levels
+# these levels are not based on scientific evidence
+# you are required to adjust as appropriate for your device and research
+MIN_BAT=10     # low water mark
+MAX_BAT=60     # high water mark
+
+POWER_UNPLUG=/usr/share/sounds/freedesktop/stereo/power-unplug.oga
+POWER_PLUG=/usr/share/sounds/freedesktop/stereo/power-plug.oga
+
+### /END SETTINGS
+
+set -eu
+
+# dependency check
+if ! [[ "$(which notify-send)" =~ (notify-send) ]]; then
+	echo "Please install libnotify to use this script.\n"
+	echo "   sudo pacman -S libnotify"
+	exit 1
+fi
+if ! [[ "$(which acpi)" =~ (acpi) ]]; then
+	echo "Please install acpi to use this script.\n"
+	echo "   sudo pacman -S acpi"
+	exit 1
+fi
+
+get_plugged_state(){
+	echo $(cat /sys/bus/acpi/drivers/battery/*/power_supply/BAT?/status)
+}
+
+get_bat_percent(){
+    echo $(acpi|grep -Po "[0-9]+(?=%)")
+}
+
+notify_sound(){
+    if [[ -n $1 ]]; then
+        paplay ${1}
+    fi
+}
+
+# primary loop
+while true ; do
+
+	if [ $(get_bat_percent) -le ${MIN_BAT} ]; then # Battery under low limit
+ 		if [[ $(get_plugged_state) = "Discharging" ]]; then # plugged
+ 		    notify-send "Battery below ${MIN_BAT}. Time to plug adapter"
+            notify_sound $POWER_PLUG
+        fi
+    fi
+	if [ $(get_bat_percent) -ge ${MAX_BAT} ]; then # Battery over high limit
+ 		if [[ $(get_plugged_state) = "Charging" ]]; then # plugged
+ 			notify-send "Battery above ${MAX_BAT}. Time to unplug adapter"
+            notify_sound $POWER_UNPLUG
+ 		fi
+	fi
+
+	sleep ${INTERVAL} # Repeat every $INTERVAL seconds
+done