mpd-add-to-queue.sh

#!/bin/bash

export MPD_HOST=$HOME/.config/mpd/socket

#MIME_CMD="file -bL --mime-type"
MIME_CMD="mimetype -biL"

[ -z "$1" ] || tmpfile=$(mktemp)

add_file() {
  $MIME_CMD "$file" | grep -q 'audio' && \
  echo "file://$(readlink -f "$file")" >> "$tmpfile"
}

for arg in "$@" ; do
  if [ -f "$arg" ] ; then # file
    file=$arg
    add_file "$file"
  elif [ -d "$arg" ] ; then # files in directory
    find "$arg" ! -regex ".*\.\(m3u8?\|part\)$" -print | sort -f | while read -r file ; do
      add_file "$file"
    done
  fi
done

[ -s "$tmpfile" ] && mpc add < "$tmpfile"

rm -f "$tmpfile"