Add spotify to polybar

dotfiles/polybar/config

@@ -4,7 +4,7 @@ green = #00d3a8
 
 accent = ${self.green}
 background = #18191E
-foreground = #000000
+foreground = #fff
 
 ###############################################################################
 [font]
@@ -25,14 +25,14 @@ height = 35
 #padding-left = 0.5
 padding-right = 1
 
-foreground = ${colors.background}
+foreground = ${colors.foreground}
 background = ${colors.background}
 
 module-margin = 1
 
 modules-left = i3tabs title
 modules-center = date
-modules-right = backlight network volume battery
+modules-right = spotify backlight network volume battery
 separator =
 
 dim-value = 1.0
@@ -89,13 +89,15 @@ enable-click = true
 enable-scroll = false
 wrapping-scroll = false
 
+format = <label-state> <label-mode>
+
 foreground = ${colors.accent}
 background = #383D41
 
 label-focused = %index%
 label-focused-foreground = ${self.foreground}
 label-focused-background = ${self.background}
-label-focused-underline = #fba922
+label-focused-underline = #fff
 label-focused-padding = 2
 
 label-unfocused = %index%
@@ -214,3 +216,10 @@ bar-width = 10
 bar-indicator = |
 bar-fill = -
 bar-empty = -
+
+###############################################################################
+[module/spotify]
+type = custom/script
+exec = ~/.config/polybar/spotify.sh %artist% - %title%
+tail = true
+interval = 2

dotfiles/polybar/spotify.sh

@@ -0,0 +1,23 @@
+#!/bin/sh
+
+main() {
+  if ! pgrep -x spotify >/dev/null; then
+    echo ""; exit
+  fi  
+
+  cmd="org.freedesktop.DBus.Properties.Get"
+  domain="org.mpris.MediaPlayer2"
+  path="/org/mpris/MediaPlayer2"
+
+  meta=$(dbus-send --print-reply --dest=${domain}.spotify \
+    /org/mpris/MediaPlayer2 org.freedesktop.DBus.Properties.Get string:${domain}.Player string:Metadata)
+
+  artist=$(echo "$meta" | sed -nr '/xesam:artist"/,+2s/^ +string "(.*)"$/\1/p' | tail -1  | sed 's/\&/\\&/g' | sed 's#\/#\\/#g')
+  album=$(echo "$meta" | sed -nr '/xesam:album"/,+2s/^ +variant +string "(.*)"$/\1/p' | tail -1| sed 's/\&/\\&/g'| sed 's#\/#\\/#g')
+  title=$(echo "$meta" | sed -nr '/xesam:title"/,+2s/^ +variant +string "(.*)"$/\1/p' | tail -1 | sed 's/\&/\\&/g'| sed 's#\/#\\/#g')
+
+  echo "${*:-%artist% - %title%}" | sed "s/%artist%/$artist/g;s/%title%/$title/g;s/%album%/$album/g"i | sed "s/\&/\&/g" | sed "s#\/#\/#g"
+
+}
+
+main "$@"