waybar: add controller battery status

scripts/controller-battery

@@ -0,0 +1,38 @@
+#!/bin/sh
+
+set -e
+
+CONTROLLER=$(find /sys/class/power_supply -maxdepth 1 -name '*controller*' || true)
+
+if test -z "$CONTROLLER"; then
+    echo
+    exit 0
+fi
+
+CAPACITY=$(cat "$CONTROLLER/capacity")
+
+echo -n '󰊴'
+
+if test "$CAPACITY" -ge 90; then
+    echo '󰁹'
+elif test "$CAPACITY" -ge 90; then
+    echo '󰂂'
+elif test "$CAPACITY" -ge 80; then
+    echo '󰂁'
+elif test "$CAPACITY" -ge 70; then
+    echo '󰂀'
+elif test "$CAPACITY" -ge 60; then
+    echo '󰁿'
+elif test "$CAPACITY" -ge 50; then
+    echo '󰁾'
+elif test "$CAPACITY" -ge 40; then
+    echo '󰁽'
+elif test "$CAPACITY" -ge 30; then
+    echo '󰁼'
+elif test "$CAPACITY" -ge 20; then
+    echo '󰁻'
+elif test "$CAPACITY" -ge 10; then
+    echo '󰁺'
+else
+    echo '󰂎'
+fi

scripts/default.nix

@@ -130,6 +130,7 @@
       libratbag
     ];
     vrr-fullscreen = [ ];
+    controller-battery = [ ];
   }
   // lib.mapAttrs importScript {
     wdmenu = ./wdmenu.nix;

user/waybar/default.nix

@@ -35,6 +35,7 @@ in
             "mpd"
             "custom/playerctl"
             "tray"
+            "custom/controller-battery"
             "custom/caffeine"
             "pulseaudio"
             (lib.optional (osConfig.services.vpn.enable or false) "custom/vpn")
@@ -157,6 +158,12 @@ in
           "sway/language" = {
             format = "{short} {variant}";
           };
+          "custom/controller-battery" = {
+            format = "{}";
+            exec = lib.getExe pkgs.controller-battery;
+            interval = 1;
+            tooltip = false;
+          };
           "custom/caffeine" = {
             format = "{}";
             exec = "systemctl --user status swayidle > /dev/null && echo 󰒲 || echo 󰒳";

user/waybar/style.css

@@ -37,6 +37,7 @@ window#waybar.solo {
 #mpd,
 #custom-mpd,
 #custom-playerctl,
+#custom-controller-battery,
 #tray,
 #clock,
 #network,