polybar: Add backlight and battery modules

home/alex/services/polybar/config.ini

@@ -52,7 +52,7 @@ font-0 = monospace;2
 
 modules-left = xworkspaces xwindow
 modules-center = systray
-modules-right = filesystem pulseaudio xkeyboard memory cpu wlan eth date
+modules-right = filesystem pulseaudio xkeyboard memory cpu battery wlan eth backlight date
 
 cursor-click = pointer
 cursor-scroll = ns-resize
@@ -73,6 +73,62 @@ type = internal/tray
 format-margin = 8pt
 tray-spacing = 16pt
 
+[module/battery]
+type = internal/battery
+
+; This is useful in case the battery never reports 100% charge
+; Default: 100
+full-at = 99
+
+; format-low once this charge percentage is reached
+; Default: 10
+; New in version 3.6.0
+low-at = 10
+
+; Use the following command to list batteries and adapters:
+; $ ls -1 /sys/class/power_supply/
+battery = BAT0
+adapter = ADP0
+
+; If an inotify event haven't been reported in this many
+; seconds, manually poll for new values.
+;
+; Needed as a fallback for systems that don't report events
+; on sysfs/procfs.
+;
+; Disable polling by setting the interval to 0.
+;
+; Default: 5
+poll-interval = 5
+
+[module/backlight]
+type = internal/xbacklight
+
+; XRandR output to get get values from
+; Default: the monitor defined for the running bar
+;output = DP-4
+
+; Create scroll handlers used to set the backlight value
+; Default: true
+enable-scroll = true
+
+; Available tags:
+;   <label> (default)
+;   <ramp>
+;   <bar>
+format = <ramp>
+
+; Available tokens:
+;   %percentage% (default)
+label = %percentage%%
+
+; Only applies if <ramp> is used
+ramp-0 = 🌕
+ramp-1 = 🌔
+ramp-2 = 🌓
+ramp-3 = 🌒
+ramp-4 = 🌑
+
 [module/xworkspaces]
 type = internal/xworkspaces