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xspf2m3u.py
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xspf2m3u.py
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import os
import re
import sys
import argparse
import subprocess
from time import sleep
from xml.etree import ElementTree
try:
import youtube_dl
ydl = youtube_dl.YoutubeDL(params={
'noplaylist': True,
'quiet': True,
})
ydl_selector = ydl.build_format_selector('bestaudio/best')
except ImportError:
youtube_dl = None
NS = '{http://xspf.org/ns/0/}'
EXTS = ['mp3', 'ogg', 'opus', 'mp4', 'm4a', 'wav', 'flac', 'wma']
CHARS = re.compile('[^a-z0-9 ]')
__version__ = '0.0.0'
class DownloadPool(set):
def log(self, s):
print(s, file=sys.stderr, end='\r')
def download(self, url, path):
self.add(subprocess.Popen(['curl', url, '-s', '-o', path]))
def poll(self):
for p in list(self):
if p.poll() is not None:
self.remove(p)
return len(self)
def __enter__(self):
return self
def __exit__(self, exc_type, exc_value, traceback):
if exc_type is None:
while self.poll():
self.log('{} downloads still active'.format(len(self)))
sleep(5)
else:
for p in self:
p.kill()
def iter_files(folder):
for dirpath, dirnames, filenames in os.walk(folder):
for filename in filenames:
if filename.rsplit('.', 1)[-1] in EXTS:
yield dirpath, filename
def simplify(s):
s = s.lower()
s = s.encode('ascii', errors='replace').decode('ascii')
return CHARS.sub('', s)
def find_by_title(title, fields, files):
for dirpath, filename in files:
path = os.path.join(dirpath, filename)
if (
simplify(title) in simplify(filename)
and all(simplify(o) in simplify(path) for o in fields)
):
return path
def search_youtube(q):
# result expires in 6h
try:
info = ydl.extract_info('ytsearch:' + ' '.join(q), download=False)
except youtube_dl.utils.DownloadError:
return None, None
if not info['entries']:
return None, None
info = info['entries'][0]
try:
_format = next(ydl_selector({'formats': info['formats']}))
except StopIteration:
return None, None
filename = '{}-{}.{}'.format(
info['title'].replace('/', '_'),
info['id'],
_format['ext'],
)
return _format['url'], filename
def iter_tracks(src):
root = ElementTree.parse(src).getroot()
for e in root.iter(NS + 'track'):
track = {}
for tag in ['location', 'title', 'creator', 'album', 'annotation']:
field = e.find(NS + tag)
if field is None:
track[tag] = None
else:
track[tag] = field.text
yield track
def hard_link(location, outdir):
os.makedirs(outdir, exist_ok=True)
filename = os.path.basename(location)
path = os.path.join(outdir, filename)
os.link(location, path)
return path
def parse_args():
parser = argparse.ArgumentParser()
parser.add_argument('src')
parser.add_argument('folder')
parser.add_argument('-Y', '--youtube', action='store_true')
parser.add_argument('-O', '--outdir')
return parser.parse_args()
def main():
args = parse_args()
files = list(iter_files(args.folder))
if args.outdir:
os.makedirs(args.outdir)
with DownloadPool() as pool:
for track in iter_tracks(args.src):
location = track['location']
if location is None:
context_key = ['creator', 'annotation']
context = [track[k] for k in context_key if track[k]]
location = find_by_title(track['title'], context, files)
if location and args.outdir:
location = hard_link(location, args.outdir)
if location is None and args.youtube and youtube_dl:
url, filename = search_youtube(
[q for q in track.values() if q]
)
if url is None:
location = None
elif args.outdir:
location = os.path.join(args.outdir, filename)
pool.download(url, location)
else:
location = url
if location is None:
s = ' - '.join('{}: {}'.format(k, v) for k, v in track.items())
print('# Warning: ' + s)
else:
print(location)
if __name__ == '__main__':
main()