Put the main code into a function

cover.sh

@@ -1,40 +0,0 @@
-#!/bin/bash
-
-COVER=/tmp/cover.jpg
-MUSIC_DIR=~/Music/
-CURRENT=$(mpc current -f %file%)
-
-update_cover() {
-
-	# extract the album art from the mp3 file
-	ffmpeg -i "$MUSIC_DIR$(mpc current -f %file%)" $COVER -y &> /dev/null
-
-    echo "Extracted album art"
-
-	# resize the image to 250x250
-	convert $COVER -resize 250x250 $COVER 
-
-	echo "Resized album art to 250x250"
-}
-
-
-update_cover
-echo "Swapped art to $(mpc current)"
-
-
-#mpv --keep-open=yes --cursor-autohide=always --no-osd-bar --no-osc --title="cover" --force-window=immediate --geometry 250x250 $COVER &
-sxiv -g 250x250 -b $COVER &
-
-
-while true; do
-    NEW=$(mpc current -f %file%)
-    if [ "$NEW" != "$CURRENT" ];then
-		CURRENT=$NEW
-		echo "Song changed. Swapping album art"
-
-		update_cover
-
-#		mpv --keep-open=yes --no-osd-bar --no-osc --title="cover" --force-window --geometry 250x250 $COVER &
-		echo "Swapped art to $(mpc current)"
-	fi
-done

kunst.sh

@@ -0,0 +1,46 @@
+#!/bin/bash
+
+COVER=/tmp/kunst.jpg
+MUSIC_DIR=~/Music/
+CURRENT=$(mpc current -f %file%)
+
+
+update_cover() {
+	# extract the album art from the mp3 file and dont show the messsy
+	# output of ffmpeg
+	ffmpeg -i "$MUSIC_DIR$(mpc current -f %file%)" $COVER -y &> /dev/null
+
+    echo "Extracted album art"
+
+	# resize the image to 250x250
+	convert $COVER -resize 250x250 $COVER 
+
+	echo "Resized album art to 250x250"
+}
+
+
+
+main() {
+	update_cover
+	echo "Swapped art to $(mpc current)"
+
+	#mpv --keep-open=yes --cursor-autohide=always --no-osd-bar --no-osc --title="cover" --force-window=immediate --geometry 250x250 $COVER &
+	sxiv -g 250x250 -b $COVER &
+
+
+	while true; do
+		NEW=$(mpc current -f %file%)
+		if [ "$NEW" != "$CURRENT" ];then
+			CURRENT=$NEW
+			echo "Song changed. Swapping album art"
+
+			update_cover
+
+	#		mpv --keep-open=yes --no-osd-bar --no-osc --title="cover" --force-window --geometry 250x250 $COVER &
+			echo "Swapped art to $(mpc current)"
+		fi
+	done
+}
+
+
+main