added signal based music scripts for mpd

Former-commit-id: 99582f4b43
Former-commit-id: 3092e409f5a98198f69b18101aef9cb525d87538
Former-commit-id: b2b953c7175571fbf155ffc49390b1825bdfc5a6

Scripts/mpd-query.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+# Get mpd state
+MPDSTATE="$(mpc | head -2 | tail -1 | awk '{print $1}')"
+
+if [[ "$MPDSTATE" != "[playing]" ]]; then
+	# echo " ·| "
+	echo ""
+else
+	# echo " ·> "
+	echo ""
+	# echo ""
+	SONG="$(mpc | head -1)"
+	notify-send "Now playing:" "$SONG" -i ~/.icons/oomox-wally-flat/actions/scalable/player_play.svg --replace-file /tmp/mpd_notification_id
+fi

Scripts/mpd_sig.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+# Write PID to that file so other processes can send signals to me
+echo $$ > /tmp/mpdinfo_pid
+
+while :         # This is the same as "while true".
+do
+	# I do this when I wake up
+	~/Scripts/mpd-query.sh
+	# Then I go back to sleep
+    sleep 1d 
+	#echo "woke up!"
+done

Scripts/mpd_wakeup.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+MPDINFO_PID="$(cat /tmp/mpdinfo_pid)"
+
+pkill -P $MPDINFO_PID sleep