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33 lines
902 B
Bash
Executable File
33 lines
902 B
Bash
Executable File
#!/bin/zsh
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# Used with the systemd battery monitor service and timer to alert
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# when the battery has dropped below the threshold and is not currently
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# charging.
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THRESHOLD=20 # Notify when below 20%
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NOTIFICATION_FLAG="/run/user/${UID}/user_battery_notified"
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function get-battery-percentage() {
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local battery=$(upower --battery | grep percentage)
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echo "${battery//[^0-9]/}"
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}
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function send-battery-alert() {
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notify-send -u critical \
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"Recharge battery!" "Batttery is down to ${1}" \
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-i battery-caution \
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-t 30000
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}
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battery_percentage=$(get-battery-percentage)
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battery_state=$(upower --battery | grep -E state | awk '{print $2}')
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if [[ "$battery_state" == "discharging" && "$battery_percentage" -le "$THRESHOLD" ]]; then
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if [ ! -f "$NOTIFICATION_FLAG" ]; then
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send-battery-alert "$battery_percentage"
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touch "$NOTIFICATION_FLAG"
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fi
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else
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rm -f "$NOTIFICATION_FLAG"
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fi
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