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#!/usr/bin/env python3
import argparse
import datetime
import glob
import json
import music_tag
import os
from pathlib import Path
import sys
import youtube_dl
def cleanup_metadata_files(music_directory):
files = glob.glob(os.path.join(music_directory, '*.json'))
for file in files:
os.remove(file)
def format_youtube_date(date):
default = "Unknown Year"
try:
fmt = "%Y%m%d"
d = datetime.datetime.strptime(date, fmt)
return d.year
except Exception as ex:
print(ex)
return default
def get_all_files(directory):
things = glob.glob(os.path.join(directory, '*.mp3'))
files = []
for thing in things:
if os.path.isfile(thing):
files.append(thing)
return files
def get_command_line_options():
parser = argparse.ArgumentParser(
description="Download songs from YouTube Music")
parser.add_argument("url",
metavar="string",
type=str,
help="Playlist or Song URL to download")
parser.add_argument("-c",
"--cookies",
metavar="string",
type=str,
help="Cookie file to use.")
parser.add_argument("-o",
"--output",
metavar="string",
type=str,
help="Output directory to use")
return parser.parse_args()
# TODO: switch command line args to argparse
def get_playlist_url():
return sys.argv[1]
def get_video_urls_in_playlist(playlist_url, ytdl):
videos = ytdl.extract_info(playlist_url, download=False)
urls = []
for vid in videos['entries']:
if 'webpage_url' in vid.keys() and vid['webpage_url'] is not None:
urls.append(vid['webpage_url'])
return urls
def move_file(file, metadata, output_directory):
artist = metadata['artist'].replace(
'-', ' ').replace(' ', '_').replace("'", "").replace(
"&", "and").lower()
album = metadata['album'].replace(
'-', ' ').replace(' ', '_').replace("'", "").replace(
"&", "and").lower()
title = metadata['title'].replace(
'-', ' ').replace(' ', '_').replace("'", "").replace(
"&", "and").lower()
final_directory = os.path.join(
output_directory,
artist,
album)
Path(final_directory).mkdir(parents=True, exist_ok=True)
# TODO: Include album title in filename
# TODO: Research converting to mp3 instead of just naming it such.
# TODO: Research better file formats over mp3?
os.rename(
file,
os.path.join(final_directory, '{}_{}_{}.mp3'.format(artist,
album,
title)))
def write_metadata_to_song_file(filename, metadata):
file = music_tag.load_file(filename)
file['name'] = metadata['title']
file['artist'] = metadata['artist']
file['album'] = metadata['album']
file['year'] = metadata['year']
file.save()
def get_song_metadata_from_json(json, counter):
metadata = {
'title': 'unknownsong',
'artist': 'unknownartist',
'album': 'unknownalbum',
'year': 1999,
'jamos_filename': 'jamos_unknwon_file_number_{}.mp3'.format(counter),
}
try:
if ('artist' in json.keys()) and (json['artist'] is not None):
metadata['artist'] = json['artist']
if len(metadata['artist'].split(',')) > 1:
# If there are multiple artists, pick the first one
# NOTE: This will break if the artist has a comma in their name
metadata['artist'] = metadata['artist'].split(',')[0]
if ('album' in json.keys()) and (json['album'] is not None):
metadata['album'] = json['album']
if ('title' in json.keys()) and (json['title'] is not None):
metadata['title'] = json['title']
if ('release_date' in json.keys()):
metadata['year'] = format_youtube_date(json['release_date'])
artist_for_filename = metadata['artist'].replace(' ', '_').lower()
title_for_filename = metadata['title'].replace(' ', '_').lower()
metadata['jamos_filename'] = '{}_{}.mp3'.format(artist_for_filename,
title_for_filename)
except Exception as ex:
print(ex)
return metadata
def create_downloader(music_directory, cookies):
audio_options = {
'format': 'mp3/bestaudio/best',
'cookiefile': cookies,
'outtmpl': music_directory + '%(title)s.%(ext)s',
'postprocessors': [
{
'key': 'FFmpegExtractAudio',
'preferredcodec': 'mp3',
'preferredquality': '192',
},
{'key': 'FFmpegMetadata'},
],
'writeinfojson': True
}
return youtube_dl.YoutubeDL(audio_options)
def save_urls_from_playlist_to_file(filename, urls):
try:
f = open(filename, "w")
for url in urls:
f.writelines(url)
f.close()
except Exception as e:
print(e)
raise e
if __name__ == "__main__":
args = get_command_line_options()
# Get the playlist url from the command line
playlist_url = args.url
music_directory = args.output or "~/Music"
cookies = args.cookies or "~/cookies.txt"
# From some testing, if your playlist is public, you don't have to use a
# cookie file. Youtube-dl doesn't break or throw if the file doesn't exist.
ytdl = create_downloader(music_directory, cookies)
# TODO: Save urls to file so we can start in the
# middle of the playlist if needed
urls = get_video_urls_in_playlist(playlist_url, ytdl)
save_urls_from_playlist_to_file(os.path.join(music_directory,
"jamos_urls.txt"), urls)
for url in urls:
try:
ytdl.extract_info(url, download=True)
except Exception as ex:
# TODO: Handle this better
print(ex)
files = get_all_files(music_directory)
counter = 1
for f in files:
try:
with open(f.replace('.mp3', '.info.json')) as json_file:
json_data = json.load(json_file)
metadata = get_song_metadata_from_json(json_data, counter)
write_metadata_to_song_file(f, metadata)
move_file(f, metadata, music_directory)
counter += 1
except Exception as e:
# just gonna print this and move on to the next file.
print(e)
cleanup_metadata_files(music_directory)
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