Further polybar customization

config/.config/polybar/scripts/spotify.sh

@@ -0,0 +1,20 @@
+#!/bin/sh
+
+main() {
+  pgrep spotify -l | grep -v spotify.sh > /dev/null || return
+
+  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 ${cmd} string:${domain}.Player string:Metadata)
+
+  # Normal track
+  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 "阮 ${*:-%artist% - %title%}" | sed "s/%artist%/$artist/g;s/%title%/$title/g;s/%album%/$album/g"i | sed "s/\&/\&/g" | sed "s#\/#\/#g"
+}
+
+main "$@"