album art name

[stroggprog]

The script looks for album art that has the name "folder.jpg" or "cover.jpg". I found that some of my folders used alternate names: "folder.png" and "cover.png", so adjusted the script to check for these.
[edited]
Some of my music folders have artwork with the same name as the folder they are in (a legacy from using Volumio in the past), so I included options to check for these. The updated artwork check now looks like this:

       if [ -f "${SONGFILE}" ];then 
            SONGDIR=$(dirname "$(readlink -f "${SONGFILE}")")
            SONGBASE=$(basename "${SONGDIR}" )
        
            if [ -f "$SONGDIR"/folder.jpg ];then
                COVERFILE="$SONGDIR"/folder.jpg
            elif [ -f "$SONGDIR"/folder.png ];then
                COVERFILE="$SONGDIR"/folder.png
            elif [ -f "$SONGDIR"/cover.jpg ];then
                COVERFILE="$SONGDIR"/cover.jpg
            elif [ -f "$SONGDIR"/cover.png ];then
                COVERFILE="$SONGDIR"/cover.png
            elif [ -f "$SONGDIR"/"$SONGBASE".jpg ];then
                COVERFILE="$SONGDIR"/"$SONGBASE".jpg
            elif [ -f "$SONGDIR"/"$SONGBASE".png ];then
                COVERFILE="$SONGDIR"/"$SONGBASE".png
            fi
        fi