174 lines
4.8 KiB
Bash
Executable file
174 lines
4.8 KiB
Bash
Executable file
#!/bin/bash
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#############################
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# Icons for Linux Battery
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#############################
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# This icon is used for macOS (no dynamic levels).
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MAC_BATTERY_ICON=""
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# Charging icon (positive power_now)
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BATTERY_CHARGING_ICON=""
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# Discharging icons based on capacity
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BATTERY_FULL_ICON="" # 80%–100%
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BATTERY_3QTR_ICON="" # 60%–79%
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BATTERY_HALF_ICON="" # 40%–59%
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BATTERY_QTR_ICON="" # 20%–39%
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BATTERY_EMPTY_ICON="" # 0%–19%
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#############################
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# macOS Battery
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#############################
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get_battery_info_mac() {
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# pmset is the standard battery command on macOS
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if ! command -v pmset &>/dev/null; then
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return 1
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fi
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capacity=$(pmset -g batt | grep -o "\d\+%" | head -n1 | tr -d '%')
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if [[ -n "$capacity" ]]; then
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# Just show generic icon + capacity on mac
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echo "$MAC_BATTERY_ICON $capacity%"
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return 0
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fi
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return 1
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}
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#############################
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# Linux Battery
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#############################
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get_battery_info_linux() {
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local path="$1"
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# Early return if path is not valid
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if [ -z "$path" ]; then
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return 1
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fi
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# capacity
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if [ -r "$path/capacity" ]; then
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capacity=$(cat "$path/capacity")
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else
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capacity=""
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fi
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# power_now
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power_now=""
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if [ -r "$path/power_now" ]; then
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power_now=$(cat "$path/power_now")
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elif [ -r "$path/current_now" ] && [ -r "$path/voltage_now" ]; then
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# Some systems use current_now and voltage_now
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current_now=$(cat "$path/current_now")
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voltage_now=$(cat "$path/voltage_now")
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if [[ -n "$current_now" && -n "$voltage_now" ]]; then
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# (current_now * voltage_now) / 1e6 => watts
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power_now=$(echo "scale=2; ($current_now * $voltage_now) / 1000000" | bc)
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fi
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fi
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# If we got capacity at all
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if [[ -n "$capacity" ]]; then
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# Figure out numeric or empty power
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if [[ -n "$power_now" ]]; then
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# Determine if power_now is micro- or milliwatts
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abs_power_now=${power_now#-} # remove leading '-' if present
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if (( abs_power_now > 10000 )); then
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# microwatts -> W
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power_consumption_watts=$(echo "scale=2; $power_now / 1000000" | bc)
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else
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# milliwatts -> W
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power_consumption_watts=$(echo "scale=2; $power_now / 1000" | bc)
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fi
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fi
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# Decide if charging or discharging
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# (If power_now > 0 => charging, < 0 => discharging)
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local battery_icon
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if [[ -n "$power_now" ]]; then
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# numeric check: is it > 0 or < 0?
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float_power=$(echo "$power_now" | sed 's/^+//; s/,/./')
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# strip any trailing newline, just in case
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if (( $(echo "$float_power > 0" | bc -l) )); then
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# CHARGING
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battery_icon="$BATTERY_CHARGING_ICON"
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else
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# DISCHARGING - pick icon by capacity
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battery_icon=$(pick_battery_icon "$capacity")
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fi
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else
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# Unknown or no power_now => treat as discharging
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battery_icon=$(pick_battery_icon "$capacity")
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fi
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# Build the final string
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if [[ -n "$power_consumption_watts" ]]; then
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echo "$battery_icon $capacity% (${power_consumption_watts} W)"
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else
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echo "$battery_icon $capacity%"
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fi
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return 0
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fi
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return 1
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}
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#############################
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# Helper to pick icon by capacity
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#############################
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pick_battery_icon() {
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local cap="$1"
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# convert to integer
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if [ "$cap" -ge 80 ]; then
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echo "$BATTERY_FULL_ICON"
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elif [ "$cap" -ge 60 ]; then
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echo "$BATTERY_3QTR_ICON"
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elif [ "$cap" -ge 40 ]; then
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echo "$BATTERY_HALF_ICON"
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elif [ "$cap" -ge 20 ]; then
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echo "$BATTERY_QTR_ICON"
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else
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echo "$BATTERY_EMPTY_ICON"
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fi
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}
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#############################
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# Gather battery info
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#############################
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get_battery_info_linux_main() {
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battery_paths=(
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"/sys/class/power_supply/macsmc-battery" # Asahi (M1) Fedora Remix
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"/sys/class/power_supply/BAT0" # Standard Linux
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"/sys/class/power_supply/BAT1" # Common secondary
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)
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for path in "${battery_paths[@]}"; do
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if [ -d "$path" ]; then
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battery_info=$(get_battery_info_linux "$path")
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if [ $? -eq 0 ]; then
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echo "$battery_info"
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return
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fi
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fi
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done
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}
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#############################
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# Main logic
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#############################
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OS="$(uname)"
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case "$OS" in
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Darwin)
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battery=$(get_battery_info_mac)
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;;
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Linux)
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battery=$(get_battery_info_linux_main)
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;;
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*)
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# Unsupported OS, no output
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battery=""
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;;
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esac
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echo "$battery"
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