Polybar: switched to pulseaudio module; bluetooth and temperature modules are loaded only when the respective devices are available

polybar/.config/polybar/config

@@ -52,7 +52,7 @@ font-3 = "Material Wifi Signal Enhanced:style=Regular:weight=bold:size=10"
 #modules-left = i3 clementine mpv
 modules-left = i3 mpv
 modules-center = date
-modules-right = temperature bluetooth wireless-network wired-network alsa battery
+modules-right = ${env:POLY_MODR}
 
 separator = " "
 spacing = 0
@@ -114,18 +114,17 @@ ramp-capacity-2 = 
 ramp-capacity-3 =  
 ramp-capacity-4 =  
 
-[module/alsa]
-type = internal/alsa
+[module/pulseaudio]
+type = internal/pulseaudio
+use-ui-max = false
 interval = 5
 format-volume = <ramp-volume>
 format-muted = <label-muted>
 label-muted = 
 label-muted-foreground = ${color.grey}
 
-; You cannot customize click actions on official modules? Really?!? >:(
-;click-right = exec pavucontrol
+click-right = exec pavucontrol
 
-; Only applies if <ramp-volume> is used
 ramp-volume-0 = 
 ramp-volume-1 = 
 ramp-volume-2 = 

polybar/.config/polybar/launch.sh

@@ -20,6 +20,8 @@ do
 done
 unset cycle
 
+POLY_MODR="wireless-network wired-network pulseaudio battery"
+
 NET_IFACES="$(ip link show | awk '/^[0-9]+:/ {sub(/:/,"",$2); print $2}')"
 for NET_IFACE in $NET_IFACES ; do
   case $NET_IFACE in
@@ -34,13 +36,24 @@ if [ -d "$HWMON_MODULE" ]; then
   HWMON_BASEDIR="$(find "$HWMON_MODULE" -maxdepth 1 -type d -name 'hwmon*' | tail -n +2 | head -1)"
   POLY_HWMON="$HWMON_BASEDIR"/temp1_input
   unset HWMON_BASEDIR
+  POLY_MODR="temperature $POLY_MODR"
 fi
 unset HWMON_MODULE
 
+# Skip if the folder doesn't exist (kernel module not loaded) or it's empty
+if [ ! -d /sys/class/bluetooth ]; then
+    :
+elif [ -z "$(ls -A /sys/class/bluetooth)" ]; then
+    :
+else
+    POLY_MODR="bluetooth $POLY_MODR"
+fi
+
 if type "xrandr"; then
   for m in $(xrandr --query | grep " connected" | cut -d" " -f1); do
-    POLY_WLP=$POLY_WLP POLY_ENP=$POLY_ENP POLY_HWMON=$POLY_HWMON MONITOR=$m polybar main -c "$HOME/.config/polybar/config" &
+    POLY_WLP=$POLY_WLP POLY_ENP=$POLY_ENP POLY_HWMON=$POLY_HWMON POLY_MODR="$POLY_MODR" MONITOR=$m \
+      polybar main -c "$HOME/.config/polybar/config" &
   done
 fi
 
-unset POLY_WLP POLY_ENP POLY_HWMON
+unset POLY_WLP POLY_ENP POLY_HWMON POLY_MODR