35 lines
1,021 B
Nix
35 lines
1,021 B
Nix
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{pkgs, ... }:
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let
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battery-watch = pkgs.writeShellScriptBin "battery-watch" ''
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critical_level=20 #percent
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while true
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do
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if [ "$(${pkgs.acpi}/bin/acpi -a | grep -o off)" == "off" ]; then
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battery_level=`${pkgs.acpi}/bin/acpi -b | sed 's/.*[dg], //g;s/\%,.*//g'`
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if [ $battery_level -le $critical_level ]; then
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${pkgs.eventd}/bin/eventc critical battery -d "title='Battery level is low!'" -d "message='Only $battery_level% of the charge remains.'"
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else
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${pkgs.eventd}/bin/eventc notification battery -d "title='Battery is discharging!'" -d "message='Only $battery_level% of the charge remains.'"
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sleep 18m
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fi
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fi
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sleep 2m
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done
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'';
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in {
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systemd.user = {
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services.battery = {
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Unit = {
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Description = "Watch battery state and warn user";
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};
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Service = {
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ExecStart="/bin/sh ${battery-watch}/bin/battery-watch";
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};
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Install = {
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WantedBy = [ "graphical-session.target" ];
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};
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};
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};
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}
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