'Move or copy any existing album art so that it remains in the
same directory as the items.'

def move_art(self, copy=False, link=False, hardlink=False):

    old_art = self.artpath
    if (not old_art):
        return
    new_art = self.art_destination(old_art)
    if (new_art == old_art):
        return
    new_art = util.unique_path(new_art)
    log.debug(u'moving    album    art    {0}    to    {1}', util.displayable_path(old_art), util.displayable_path(new_art))
    if copy:
        util.copy(old_art, new_art)
    elif link:
        util.link(old_art, new_art)
    elif hardlink:
        util.hardlink(old_art, new_art)
    else:
        util.move(old_art, new_art)
    self.artpath = new_art
    if (not copy):
        util.prune_dirs(os.path.dirname(old_art), self._db.directory)
