add mpd mdule locally and update config

polybar-themes/sblocks/scripts/mpd-controls.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+checkRunning="$(mpc current)"
+if [[ $checkRunning == '' ]]; then
+	exit 1
+fi
+
+arg=$1
+if [[ $arg == 'next' ]] || [[ "$arg" == "-n" ]]; then
+	echo "怜"
+elif [[ $arg == 'prev' ]] || [[ "$arg" == "-p" ]]; then
+	echo "玲"
+elif [[ "$arg" == 'icon' ]] || [[ "$arg" == "-i" ]]; then
+	echo ""
+fi

polybar-themes/sblocks/scripts/show-music.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+
+## display currently playing/paused song with zscroll
+## no output when mpd is stopped
+
+if ! mpc >/dev/null 2>&1; then
+	exit 1
+else
+	(
+		mpc current | zscroll -l 30 --delay 0.3 \
+			--match-command "mpc status" \
+			--match-text "playing" "--before-text ' '" \
+			--match-text "paused" "--before-text '契 ' --scroll 0" \
+			--update-check true "mpc current" &
+	) &
+fi
+
+mpc idle >/dev/null