159 lines
4 KiB
Bash
Executable file
159 lines
4 KiB
Bash
Executable file
#!/bin/sh
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_bat_info_dir="/sys/class/power_supply/BAT"
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print() {
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string="$1"
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if [ -n "$string" ]; then
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printf '%s ' "$string"
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fi
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}
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# Has at least one battery
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_bat_exists() {
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for battery in "$_bat_info_dir"?* ; do
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[ -d "$battery" ] && echo 1 && return
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done
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}
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# Find average value
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_bat_value() {
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[ "$(_bat_exists)" != 1 ] && return 1
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info="$1"
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total=0
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batteries=0
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for battery in "$_bat_info_dir"?* ; do
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while read -r line; do
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value="$line"
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done < "$battery/$info"
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total=$((value+total))
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batteries=$((batteries+1))
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done
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[ $total -ge 0 ] && value=$((total/batteries)) || return 1
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echo "$value"
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}
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# Find status string
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bat_status() {
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[ "$(_bat_exists)" != 1 ] && return 1
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for battery in "$_bat_info_dir"?* ; do
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while read -r line; do
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echo "$line"
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return
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done < "$battery/status"
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done
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}
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# Icon state
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bat_icon() {
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[ "$(_bat_exists)" != 1 ] && echo "" && return 0
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bat="$(_bat_value capacity)"
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# This is meant to be a constant string
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# shellcheck disable=2194
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case "1" in
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$((bat >= 98)) ) icon="" ;;
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$((bat >= 90)) ) icon="" ;;
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$((bat >= 80)) ) icon="" ;;
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$((bat >= 70)) ) icon="" ;;
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$((bat >= 60)) ) icon="" ;;
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$((bat >= 50)) ) icon="" ;;
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$((bat >= 40)) ) icon="" ;;
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$((bat >= 30)) ) icon="" ;;
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$((bat >= 20)) ) icon="" ;;
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$((bat >= 10)) ) icon="" ;;
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$((bat >= 0)) ) icon="" ;;
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esac
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if [ "$(bat_status)" = "Charging" ] ; then
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case "$icon" in
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"" ) icon="" ;;
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"" ) icon="" ;;
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"" ) icon="" ;;
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"" ) icon="" ;;
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"" ) icon="" ;;
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"" ) icon="" ;;
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"" ) icon="" ;;
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"" ) icon="" ;;
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"" ) icon="" ;;
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"" ) icon="" ;;
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"" ) icon="" ;;
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esac
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fi
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echo "$icon"
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}
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# Time to empty in minutes
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bat_tte() {
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charge="$(_bat_value charge_now)"
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current="$(_bat_value current_now)"
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[ -n "$charge" ] && [ -n "$current" ] || return 1
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echo $((charge * 60 / current))
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}
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# Time to full in minutes
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bat_ttf() {
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full="$(_bat_value charge_full)"
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charge="$(_bat_value charge_now)"
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current="$(_bat_value current_now)"
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[ -n "$full" ] && [ -n "$charge" ] && [ -n "$current" ] || return 1
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missing="$((full - charge))"
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echo $((missing * 60 / current))
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}
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# Time to empty human readable
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bat_tteh() {
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minutes="$(bat_tte)"
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[ -n "$minutes" ] || return 1
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hours=$(( minutes / 60 ))
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minutes=$(( minutes % 60 ))
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printf "%02dh%02dm\n" "$hours" "$minutes"
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}
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# Time to full human readable
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bat_ttfh() {
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minutes="$(bat_ttf)"
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[ -n "$minutes" ] || return 1
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hours=$(( minutes / 60 ))
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minutes=$(( minutes % 60 ))
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printf "%02dh%02dm\n" "$hours" "$minutes"
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}
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# Time to full if charging, time to empty otherwise
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bat_atime() {
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[ "$(_bat_exists)" != 1 ] && return 1
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if [ "$(bat_status)" = "Charging" ]; then
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bat_ttf
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else
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bat_tte
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fi
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}
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# Like bat_atime, human readable
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bat_atimeh() {
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[ "$(_bat_exists)" != 1 ] && return 1
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if [ "$(bat_status)" = "Charging" ]; then
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bat_ttfh
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else
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bat_tteh
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fi
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}
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# Default values
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: "${info:=icon atimeh}"
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output="$(for i in $info; do
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case $i in
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status) print "$(bat_status)";; # Status
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icon) print "$(bat_icon)";; # Icon status
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level) print "$(_bat_value capacity)";; # Battery percentage
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tte) print "$(bat_tte)";; # Time to empty (minutes)
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ttf) print "$(bat_ttf)";; # Time to full (minutes)
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tteh) print "$(bat_tteh)";; # Time to empty (human)
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ttfh) print "$(bat_ttfh)";; # Time to full (human)
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atime) print "$(bat_atime)";; # ttf if charging, else tte
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atimeh) print "$(bat_atimeh)";; # Auto time (human)
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esac
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done)"
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echo "${output% }"
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