{ gawk, gnused, writeDashBin }: writeDashBin "q-power_supply" '' power_supply() {( set -efu uevent=$1 eval "$(${gnused}/bin/sed -n ' s/^\([A-Z_]\+=[0-9A-Za-z_-]*\)$/export \1/p ' $uevent)" case $POWER_SUPPLY_NAME in AC) exit # not battery ;; esac exec </dev/null exec ${gawk}/bin/awk ' function die(s) { printf "%s: %s\n", name, s exit 1 } function print_hm(h, m) { m = (h - int(h)) * 60 return sprintf("%dh%dm", h, m) } function print_bar(n, r, t1, t2, t_col) { t1 = int(r * n) t2 = n - t1 if (r >= .42) t_col = "1;32" else if (r >= 23) t_col = "1;33" else if (r >= 11) t_col = "1;31" else t_col = "5;1;31" return sgr(t_col) strdup("■", t1) sgr(";30") strdup("■", t2) sgr() } function sgr(p) { return "\x1b[" p "m" } function strdup(s,n,t) { t = sprintf("%"n"s","") gsub(/ /,s,t) return t } END { name = ENVIRON["POWER_SUPPLY_NAME"] charge_unit = "Ah" charge_now = ENVIRON["POWER_SUPPLY_CHARGE_NOW"] / 10^6 charge_full = ENVIRON["POWER_SUPPLY_CHARGE_FULL"] / 10^6 current_unit = "A" current_now = ENVIRON["POWER_SUPPLY_CURRENT_NOW"] / 10^6 energy_unit = "Wh" energy_now = ENVIRON["POWER_SUPPLY_ENERGY_NOW"] / 10^6 energy_full = ENVIRON["POWER_SUPPLY_ENERGY_FULL"] / 10^6 power_unit = "W" power_now = ENVIRON["POWER_SUPPLY_POWER_NOW"] / 10^6 voltage_unit = "V" voltage_now = ENVIRON["POWER_SUPPLY_VOLTAGE_NOW"] / 10^6 voltage_min_design = ENVIRON["POWER_SUPPLY_VOLTAGE_MIN_DESIGN"] / 10^6 #printf "charge_now: %s\n", charge_now #printf "charge_full: %s\n", charge_full #printf "current_now: %s\n", current_now #printf "energy_now: %s\n", energy_now #printf "energy_full: %s\n", energy_full #printf "energy_full: %s\n", ENVIRON["POWER_SUPPLY_ENERGY_FULL"] #printf "energy_full: %s\n", ENVIRON["POWER_SUPPLY_ENERGY_FULL"] / 10^6 #printf "power_now: %s\n", power_now #printf "voltage_now: %s\n", voltage_now if (current_now == 0 && voltage_now != 0) { current_now = power_now / voltage_now } if (power_now == 0) { power_now = current_now * voltage_now } if (charge_now == 0 && voltage_min_design != 0) { charge_now = energy_now / voltage_min_design } if (energy_now == 0) { energy_now = charge_now * voltage_min_design } if (charge_full == 0 && voltage_min_design != 0) { charge_full = energy_full / voltage_min_design } if (energy_full == 0) { energy_full = charge_full * voltage_min_design } if (charge_now == 0 || charge_full == 0) { die("unknown charge") } charge_ratio = charge_now / charge_full out = out name out = out sprintf(" %s", print_bar(10, charge_ratio)) out = out sprintf(" %d%", charge_ratio * 100) out = out sprintf(" %.2f%s", charge_now, charge_unit) if (current_now != 0) { out = out sprintf("/%.1f%s", current_now, current_unit) } out = out sprintf(" %d%s", energy_full, energy_unit) if (power_now != 0) { out = out sprintf("/%.1f%s", power_now, power_unit) } if (current_now != 0) { out = out sprintf(" %s", print_hm(charge_now / current_now)) } print out } ' )} for uevent in /sys/class/power_supply/*/uevent; do power_supply "$uevent" || : done ''