139 lines
4.9 KiB
Python
Executable File
139 lines
4.9 KiB
Python
Executable File
#! /usr/bin/env python3
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# -*- coding: utf-8 -*-
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# vim:fenc=utf-8:ft=python
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#
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# Bad Witch
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# Copyright © 2020 Vintage Salt <rehashedsalt@cock.li>
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#
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# Distributed under terms of the MIT license.
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#
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from appdirs import AppDirs
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from pathlib import Path
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import argparse
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import json
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import logging
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import pathlib
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import sys
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import youtube_dl
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class Library:
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# A thing full of albums
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def __init__(self, file, albums={}):
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self.albums = albums
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self.file = file
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# Load from file
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def load(self):
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try:
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with open(self.file, 'r+') as libfd:
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libfd.seek(0)
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self.albums = json.load(libfd)
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except FileNotFoundError:
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logging.debug('Could not find library, loading empty')
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self.albums = {}
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return
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# Save to file
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def save(self):
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with open(self.file, 'w+') as libfd:
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libfd.seek(0)
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json.dump(self.albums, libfd, indent='\t')
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return
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def validate(self):
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self.load()
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try:
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for album, albumcontent in self.albums.items():
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for song, songcontent in albumcontent.items():
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if songcontent['artist'] is None:
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raise Exception
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except:
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logging.warn('Library not valid')
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raise Exception('Library not valid')
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# Download library
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def download(self, targetalbum=None):
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if targetalbum is not None:
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print('Downloading album: ' + album)
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else:
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print('Downloading entire library')
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for album, albumcontent in self.albums.items():
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# Skip albums that don't match our criterea
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if targetalbum is not None and not album == targetalbum:
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logging.debug('Skipping album ' + album)
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continue
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# God have mercy on my soul
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artist = next(iter(albumcontent.values()))['artist']
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destpath = (Path.home() / 'Music' / artist / album)
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Path(destpath).mkdir(parents=True, exist_ok=True)
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for song, songcontent in albumcontent.items():
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destfile = str(destpath / song) + '.%(ext)s'
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# See if we already have it
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matches = sorted(Path(destpath).glob(song + '.*'))
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if not matches == []:
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logging.info('Already have song: ' + song)
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continue
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# Download the song
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ytdl_opts = {
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'format': 'bestaudio',
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'postprocessors': [{
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'key': 'FFmpegExtractAudio',
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'preferredcodec': 'opus',
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'preferredquality': '192'
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}],
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'quiet': True,
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'playlist_items': 1,
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'outtmpl': destfile
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}
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with youtube_dl.YoutubeDL(ytdl_opts) as ydl:
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ydl.download([songcontent['source']])
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logging.info('Downloaded song: ' + song)
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class BadWitch:
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# Our program
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def __init__(self):
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# Flags and arguments
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self.argparser = argparse.ArgumentParser(
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description='Manage a declarative music library through YouTube scraping')
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self.argparser.add_argument('-l', '--library', metavar='f', nargs='?',
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help='Override default library file with this one')
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self.argparser.add_argument('-v', '--verbose', action='store_true',
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help='Show more status messages')
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self.argparser.add_argument('-d', '--debug', action='store_true',
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help='Show even more status messages')
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self.argparser.add_argument('action', metavar='action', nargs='?',
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choices=['download', 'list'],
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help='Action to perform on the library')
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# Set up appdirs
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self.dirs = AppDirs('badwitch', 'rehashedsalt')
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Path(self.dirs.user_data_dir).mkdir(parents=True, exist_ok=True)
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def execute(self):
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self.args = self.argparser.parse_args()
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# Parse flags
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if self.args.debug:
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logging.basicConfig(level=logging.DEBUG)
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elif self.args.verbose:
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logging.basicConfig(level=logging.INFO)
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# Initialize library
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libfile = self.args.library or self.dirs.user_data_dir + '/lib.json'
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lib = Library(file=libfile)
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lib.load()
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lib.validate()
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# Perform action
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if self.args.action == 'download':
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lib.download()
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return
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elif self.args.action == 'list':
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for album, albumcontent in lib.albums.items():
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print(album)
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for song, songcontent in albumcontent.items():
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print(str(songcontent['track'])
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+ ' - ' + song
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+ ' by ' + songcontent['artist'])
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return
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badwitch = BadWitch()
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badwitch.execute()
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