diff options
Diffstat (limited to 'krebs/5pkgs/simple')
| -rw-r--r-- | krebs/5pkgs/simple/q-power_supply.nix | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/krebs/5pkgs/simple/q-power_supply.nix b/krebs/5pkgs/simple/q-power_supply.nix new file mode 100644 index 000000000..87f900194 --- /dev/null +++ b/krebs/5pkgs/simple/q-power_supply.nix @@ -0,0 +1,126 @@ +{ 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 +'' |