import os import sys import json import shutil import platform import time import subprocess from pathlib import Path from concurrent.futures import ThreadPoolExecutor, as_completed os.chdir(os.path.dirname(os.path.abspath(sys.argv[0]))) if platform.system() == "Windows": sys.stdout.reconfigure(encoding="utf-8") # type: ignore OK = "✔" FAIL = "✘" WARN = "⚠" INFO = "ℹ" STEP = "➜" def update_yt_dlp(yt_dlp_path: str): try: subprocess.run( [yt_dlp_path, "-U"], check=True, stdout=subprocess.DEVNULL, stderr=subprocess.PIPE, # capture error output text=True ) print(f"{OK} yt-dlp is up to date.") except subprocess.CalledProcessError as e: print(f"{WARN} Could not update yt-dlp: Internet unavailable or cannot reach update server") class ConfigLoader: DEFAULT_CONFIG = { "playlists": [ { "url": "https://www.youtube.com/playlist?list=YOUR_PLAYLIST_HERE", "save_path": "./music", "archive": "archive.txt" } ], "yt_dlp_path": "./bin/yt-dlp.exe" if platform.system() == "Windows" else "yt-dlp", "ffmpeg_path": "./bin/ffmpeg.exe" if platform.system() == "Windows" else "ffmpeg", "aria2c_path": "./bin/aria2c.exe" if platform.system() == "Windows" else "aria2c", "max_parallel_downloads": 10, "aria2c_connections": 8 } def __init__(self, config_path: str = "yt-playlist-config.json"): self.config_path = Path(config_path).resolve() if not self.config_path.exists(): self._create_default_config() print(f"{INFO} Default config created at '{self.config_path}'. Please edit it and rerun.") sys.exit(0) with self.config_path.open("r", encoding="utf-8") as f: self.data = json.load(f) # Validate binaries self._check_binary(self.yt_dlp_path, "yt-dlp") self._check_binary(self.ffmpeg_path, "ffmpeg") self._check_binary(self.aria2c_path, "aria2c") def _create_default_config(self): with self.config_path.open("w", encoding="utf-8") as f: json.dump(self.DEFAULT_CONFIG, f, indent=2) def _check_binary(self, path_str, name): path = Path(path_str) # If relative, resolve relative to the config file location if not path.is_absolute(): path = (self.config_path.parent / path).resolve() # Check direct file existence OR system PATH if path.is_file() or shutil.which(str(path)): return print( f"{WARN}[ERROR] {name} not found.\n" f" Configured path: '{path_str}'\n" f" Resolved absolute path: '{path}'\n" f"Please install or correct the yt-playlist-config.json path." ) sys.exit(1) @property def playlists(self): return self.data.get("playlists", []) @property def yt_dlp_path(self): return self.data["yt_dlp_path"] @property def ffmpeg_path(self): return self.data["ffmpeg_path"] @property def aria2c_path(self): return self.data["aria2c_path"] @property def max_parallel_downloads(self): return self.data.get("max_parallel_downloads", 10) @property def aria2c_connections(self): return self.data.get("aria2c_connections", 8) class PlaylistDownloader: illegal_chars = '<>:"/\\|?*' def __init__(self, config: ConfigLoader, playlist: dict, index: int): # Determine a friendly identifier for the playlist playlist_id = playlist.get("url") or playlist.get("save_path") or f"playlist #{index+1}" # Check for missing or empty URL self.url = playlist.get("url") if not self.url or not self.url.startswith("https://www.youtube.com/playlist?list=") or len(self.url) <= len("https://www.youtube.com/playlist?list="): print(f"{FAIL} Playlist #{index+1} has invalid or empty URL: '{self.url}' skipping") self.skip = True else: self.skip = False # Continue with normal initialization self.save_path = Path(playlist.get("save_path", "./music")) self.save_path.mkdir(parents=True, exist_ok=True) # Archive path self.archive = Path(playlist.get("archive", "archive.txt")) if not self.archive.is_absolute(): self.archive = self.save_path / self.archive self.archive.touch(exist_ok=True) self.yt_dlp = config.yt_dlp_path self.ffmpeg = config.ffmpeg_path self.aria2c = config.aria2c_path self.max_parallel = config.max_parallel_downloads self.aria2c_connections = config.aria2c_connections def sanitize_title(self, title, fallback_id): safe_title = title.translate(str.maketrans({c: '-' for c in self.illegal_chars})).strip() return safe_title if safe_title else fallback_id def get_file_path(self, track_index, title): return self.save_path / f"{track_index:03d} - {title}.mp3" def fetch_videos(self): if getattr(self, "skip", False) or not self.url: return [] # nothing to fetch result = subprocess.run( [self.yt_dlp, "-J", "--flat-playlist", self.url], capture_output=True, text=True, check=True ) data = json.loads(result.stdout) entries = data.get("entries", []) valid = [] for v in entries: if not v: continue title = v.get("title", "") if title in ("[Deleted video]", "[Private video]"): print(f"[SKIP] {v['id']} - {title}") continue valid.append(v) return valid def get_archive_ids(self): ids = set() with self.archive.open("r", encoding="utf-8") as f: for line in f: parts = line.strip().split() if len(parts) >= 2: ids.add(parts[1]) return ids def download_video(self, video, track_index): title = video.get("title", "[Unknown]") safe_title = self.sanitize_title(title, video["id"]) file_output = self.get_file_path(track_index, safe_title) video_url = f"https://www.youtube.com/watch?v={video['id']}" try: subprocess.run([ str(self.yt_dlp), "-f", "bestaudio", "--extract-audio", "--audio-format", "mp3", "--audio-quality", "0", "--ffmpeg-location", str(self.ffmpeg), "--download-archive", str(self.archive), "-o", str(file_output), "--external-downloader", str(self.aria2c), "--external-downloader-args", f"aria2c:-x {self.aria2c_connections} -s {self.aria2c_connections}", video_url ], check=True) print(f"{OK} Downloaded: {track_index:03d} - {title}") return True except subprocess.CalledProcessError as e: #print(f"{FAIL} Error downloading {title}: {e}") #print full error err_msg = e.stderr.strip().splitlines()[-1] if e.stderr else "Video Unlisted or Unavailable" print(f"{FAIL} Download failed: {title} — {err_msg}") return False def renumber_all_tracks(self, playlist_entries): print(f"\n{STEP} Renumbering files according to playlist order") temp_suffix = ".renametemp" final_map = {} for idx, video in enumerate(playlist_entries, start=1): title = video.get("title", "[Unknown]") safe_title = self.sanitize_title(title, video["id"]) correct_fname = f"{idx:03d} - {safe_title}.mp3" final_map[safe_title] = correct_fname for safe_title, correct_fname in final_map.items(): matches = list(self.save_path.glob(f"* - {safe_title}.mp3")) if matches: current_path = matches[0] if current_path.name != correct_fname: temp_path = current_path.with_suffix(current_path.suffix + temp_suffix) #print(f"Temporarily renaming '{current_path.name}' → '{temp_path.name}'") current_path.rename(temp_path) for safe_title, correct_fname in final_map.items(): temp_match = list(self.save_path.glob(f"* - {safe_title}.mp3{temp_suffix}")) if temp_match: temp_path = temp_match[0] final_path = self.save_path / correct_fname print(f"Renaming '{temp_path.name}' → '{final_path.name}'") temp_path.rename(final_path) print(f"{OK} Renumbering complete.") def update(self): playlist_id = self.url or self.save_path or "unknown playlist" if getattr(self, "skip", False): print(f"{WARN} Skipping playlist '{playlist_id}': URL missing in the config.") return print(f"{STEP} Updating playlist: {playlist_id}") playlist_entries = self.fetch_videos() archive_ids = self.get_archive_ids() new_videos = [v for v in playlist_entries if v["id"] not in archive_ids] if not new_videos: print(f"{OK} No new tracks found.") else: print(f"{OK} Found {len(new_videos)} new track(s) to download.") idx_map = {v["id"]: i+1 for i, v in enumerate(playlist_entries)} with ThreadPoolExecutor(max_workers=self.max_parallel) as executor: futures = [executor.submit(self.download_video, v, idx_map[v["id"]]) for v in new_videos] for f in as_completed(futures): try: f.result() except subprocess.CalledProcessError as e: print(f"{FAIL} Download failed: {e}") self.renumber_all_tracks(playlist_entries) self.cleanup_removed_tracks(playlist_entries) def cleanup_removed_tracks(self, playlist_entries): print(f"{STEP} Checking for files not in the playlist") valid_titles = set() for video in playlist_entries: title = video.get("title", "[Unknown]") safe_title = self.sanitize_title(title, video["id"]) valid_titles.add(safe_title) to_delete = [] for file in self.save_path.glob("*.mp3"): parts = file.name.split(" - ", 1) if len(parts) == 2: safe_title_in_file = parts[1][:-4] if safe_title_in_file not in valid_titles: to_delete.append(file) if not to_delete: print(f"{OK} No extra files to delete.") return print(f"{WARN} The following files are not in the playlist and will be deleted:") for f in to_delete: print(f" {f.name}") try: confirm = input(f"{WARN} Delete these files? [y/N]: ").strip().lower() except EOFError: confirm = "n" if confirm == "y": for f in to_delete: try: f.unlink() print(f"{OK} Deleted: {f.name}") except Exception as ex: print(f"{FAIL} Failed to delete {f.name}: {ex}") print(f"{OK} Cleanup complete.") else: print(f"{OK} Cleanup aborted. No files were deleted.") class PlaylistManager: def __init__(self, config: ConfigLoader): self.config = config self.playlists = [ PlaylistDownloader(config, pl, idx) for idx, pl in enumerate(config.playlists) ] def run(self): total_connections = self.config.max_parallel_downloads * self.config.aria2c_connections if total_connections > 100: print("\033[91m" f"{WARN}[WARNING] Total connections ({self.config.max_parallel_downloads} × " f"{self.config.aria2c_connections} = {total_connections}) may overload your network! Pausing 5 seconds..." "\033[0m") time.sleep(5) for playlist in self.playlists: playlist.update() if __name__ == "__main__": cfg = ConfigLoader("yt-playlist-config.json") update_yt_dlp(cfg.yt_dlp_path) #update yt-dpl executable manager = PlaylistManager(cfg) manager.run()