m3u_generate.py

#!/bin/env python
import os
base_url = 'http://mydomain.com/mp3s'
root_dir = '/home/username/mp3s'
m3u_name = '000_all_songs.m3u'
audio_exts = ['.mp3', '.ogg', '.m4a']
def handle_dir(base_dir, root_dir):
    files = []
    for path in os.listdir(root_dir):
        full_path = os.path.join(root_dir, path)
        if os.path.isdir(full_path):
            handle_dir(base_dir, full_path)
            continue
        filename, ext = os.path.splitext(full_path)
        if ext in audio_exts:
            files.append(full_path)
    if len(files) == 0:
        return
    with open(os.path.join(root_dir, m3u_name), 'w') as playlist:
        for fil in files:
            url = '{}{}'.format(
                    base_url,
                    '/'.join(os.path.split(fil[len(base_dir):]))
                    )
            playlist.write('{}\n'.format(url))
handle_dir(root_dir, root_dir)