import io, logging, os, re, sys, traceback from logging.handlers import RotatingFileHandler LOG_DIR = "logs" COLLECTION_DIR = "collections" PLAYLIST_DIR = "playlists" MAIN_LOG = "meta.log" LIBRARY_LOG = "library.log" COLLECTION_LOG = "collection.log" PLAYLIST_LOG = "playlist.log" PLAYLISTS_LOG = "playlists.log" CRITICAL = 50 FATAL = CRITICAL ERROR = 40 WARNING = 30 WARN = WARNING INFO = 20 DEBUG = 10 TRACE = 0 def fmt_filter(record): record.levelname = f"[{record.levelname}]" record.filename = f"[{record.filename}:{record.lineno}]" return True _srcfile = os.path.normcase(fmt_filter.__code__.co_filename) class MyLogger: def __init__(self, logger_name, default_dir, screen_width, separating_character, ignore_ghost, is_debug, is_trace): self.logger_name = logger_name self.default_dir = default_dir self.screen_width = screen_width self.separating_character = separating_character self.is_debug = is_debug self.is_trace = is_trace self.ignore_ghost = ignore_ghost self.log_dir = os.path.join(default_dir, LOG_DIR) self.playlists_dir = os.path.join(self.log_dir, PLAYLIST_DIR) self.main_log = os.path.join(self.log_dir, MAIN_LOG) self.main_handler = None self.save_errors = False self.saved_errors = [] self.library_handlers = {} self.collection_handlers = {} self.playlist_handlers = {} self.playlists_handler = None self.secrets = [] self.spacing = 0 self.playlists_log = os.path.join(self.playlists_dir, PLAYLISTS_LOG) os.makedirs(self.log_dir, exist_ok=True) self._logger = logging.getLogger(self.logger_name) self._logger.setLevel(logging.DEBUG) cmd_handler = logging.StreamHandler() cmd_handler.setLevel(logging.DEBUG if self.debug else logging.INFO) self._logger.addHandler(cmd_handler) def clear_errors(self): self.saved_errors = [] def _get_handler(self, log_file, count=3): _handler = RotatingFileHandler(log_file, delay=True, mode="w", backupCount=count, encoding="utf-8") self._formatter(_handler) if os.path.isfile(log_file): self._logger.removeHandler(_handler) _handler.doRollover() self._logger.addHandler(_handler) return _handler def _formatter(self, handler, border=True): text = f"| %(message)-{self.screen_width - 2}s |" if border else f"%(message)-{self.screen_width - 2}s" if isinstance(handler, RotatingFileHandler): text = f"[%(asctime)s] %(filename)-27s %(levelname)-10s {text}" handler.setFormatter(logging.Formatter(text)) def add_main_handler(self): self.main_handler = self._get_handler(self.main_log, count=9) self.main_handler.addFilter(fmt_filter) self._logger.addHandler(self.main_handler) def remove_main_handler(self): self._logger.removeHandler(self.main_handler) def add_library_handler(self, library_key): os.makedirs(os.path.join(self.log_dir, library_key, COLLECTION_DIR), exist_ok=True) self.library_handlers[library_key] = self._get_handler(os.path.join(self.log_dir, library_key, LIBRARY_LOG)) self._logger.addHandler(self.library_handlers[library_key]) def remove_library_handler(self, library_key): if library_key in self.library_handlers: self._logger.removeHandler(self.library_handlers[library_key]) def re_add_library_handler(self, library_key): if library_key in self.library_handlers: self._logger.addHandler(self.library_handlers[library_key]) def add_playlists_handler(self): os.makedirs(self.playlists_dir, exist_ok=True) self.playlists_handler = self._get_handler(self.playlists_log, count=10) self._logger.addHandler(self.playlists_handler) def remove_playlists_handler(self): self._logger.removeHandler(self.playlists_handler) def add_collection_handler(self, library_key, collection_key): collection_dir = os.path.join(self.log_dir, str(library_key), COLLECTION_DIR, str(collection_key)) os.makedirs(collection_dir, exist_ok=True) if library_key not in self.collection_handlers: self.collection_handlers[library_key] = {} self.collection_handlers[library_key][collection_key] = self._get_handler(os.path.join(collection_dir, COLLECTION_LOG)) self._logger.addHandler(self.collection_handlers[library_key][collection_key]) def remove_collection_handler(self, library_key, collection_key): if library_key in self.collection_handlers and collection_key in self.collection_handlers[library_key]: self._logger.removeHandler(self.collection_handlers[library_key][collection_key]) def add_playlist_handler(self, playlist_key): playlist_dir = os.path.join(self.playlists_dir, playlist_key) os.makedirs(playlist_dir, exist_ok=True) self.playlist_handlers[playlist_key] = self._get_handler(os.path.join(playlist_dir, PLAYLIST_LOG)) self._logger.addHandler(self.playlist_handlers[playlist_key]) def remove_playlist_handler(self, playlist_key): if playlist_key in self.playlist_handlers: self._logger.removeHandler(self.playlist_handlers[playlist_key]) def _centered(self, text, sep=" ", side_space=True, left=False): if len(text) > self.screen_width - 2: return text space = self.screen_width - len(text) - 2 text = f"{' ' if side_space else sep}{text}{' ' if side_space else sep}" if space % 2 == 1: text += sep space -= 1 side = int(space / 2) - 1 final_text = f"{text}{sep * side}{sep * side}" if left else f"{sep * side}{text}{sep * side}" return final_text def separator(self, text=None, space=True, border=True, debug=False, trace=False, side_space=True, left=False): if trace and not self.is_trace: return None sep = " " if space else self.separating_character for handler in self._logger.handlers: self._formatter(handler, border=False) border_text = f"|{self.separating_character * self.screen_width}|" if border: self.print(border_text, debug=debug) if text: text_list = text.split("\n") for t in text_list: msg = f"|{sep}{self._centered(t, sep=sep, side_space=side_space, left=left)}{sep}|" self.print(msg, debug=debug, trace=trace) if border: self.print(border_text, debug=debug) for handler in self._logger.handlers: self._formatter(handler) def print(self, msg, error=False, warning=False, debug=False, trace=False): if error: self.error(msg) elif warning: self.warning(msg) elif debug: self.debug(msg) elif trace: self.trace(msg) else: self.info(msg) def debug(self, msg, *args, **kwargs): if self._logger.isEnabledFor(DEBUG): self._log(DEBUG, str(msg), args, **kwargs) def info_center(self, msg, *args, **kwargs): self.info(self._centered(str(msg)), *args, **kwargs) def info(self, msg, *args, **kwargs): if self._logger.isEnabledFor(INFO): self._log(INFO, str(msg), args, **kwargs) def warning(self, msg, *args, **kwargs): if self._logger.isEnabledFor(WARNING): self._log(WARNING, str(msg), args, **kwargs) def trace(self, msg, *args, **kwargs): if self.is_trace: self._log(TRACE, str(msg), args, **kwargs) def error(self, msg, *args, **kwargs): if self.save_errors: self.saved_errors.append(msg) if self._logger.isEnabledFor(ERROR): self._log(ERROR, str(msg), args, **kwargs) def critical(self, msg, *args, **kwargs): if self.save_errors: self.saved_errors.append(msg) if self._logger.isEnabledFor(CRITICAL): self._log(CRITICAL, str(msg), args, **kwargs) def stacktrace(self, trace=False): self.print(traceback.format_exc(), debug=not trace, trace=trace) def _space(self, display_title): display_title = str(display_title) space_length = self.spacing - len(display_title) if space_length > 0: display_title += " " * space_length return display_title def ghost(self, text): if not self.ignore_ghost: try: final_text = f"| {text}" except UnicodeEncodeError: text = text.encode("utf-8") final_text = f"| {text}" print(self._space(final_text), end="\r") self.spacing = len(text) + 2 def exorcise(self): if not self.ignore_ghost: print(self._space(" "), end="\r") self.spacing = 0 def secret(self, text): if text and str(text) not in self.secrets: self.secrets.append(str(text)) def _log(self, level, msg, args, exc_info=None, extra=None, stack_info=False, stacklevel=1): trace = False original_format_str = "[%(asctime)s] %(filename)-27s %(levelname)-10s | %(message)s" format_str = original_format_str if level == TRACE: trace = True level = DEBUG format_str = "[%(asctime)s] %(filename)-27s [TRACE] | %(message)s" for handler in self._logger.handlers: if isinstance(handler, RotatingFileHandler): handler.setFormatter(logging.Formatter(format_str)) if self.spacing > 0: self.exorcise() if "\n" in msg: for i, line in enumerate(msg.split("\n")): self._log(level, line, args, exc_info=exc_info, extra=extra, stack_info=stack_info, stacklevel=stacklevel) if i == 0: for handler in self._logger.handlers: if isinstance(handler, RotatingFileHandler): handler.setFormatter(logging.Formatter(" " * 65 + "| %(message)s")) for handler in self._logger.handlers: if isinstance(handler, RotatingFileHandler): handler.setFormatter(logging.Formatter(format_str)) else: for secret in self.secrets: if secret in msg: msg = msg.replace(secret, "(redacted)") if "HTTPConnectionPool" in msg: msg = re.sub("HTTPConnectionPool\\((.*?)\\)", "HTTPConnectionPool(redacted)", msg) if "HTTPSConnectionPool" in msg: msg = re.sub("HTTPSConnectionPool\\((.*?)\\)", "HTTPSConnectionPool(redacted)", msg) try: if not _srcfile: raise ValueError fn, lno, func, sinfo = self.findCaller(stack_info, stacklevel) except ValueError: fn, lno, func, sinfo = "(unknown file)", 0, "(unknown function)", None if exc_info: if isinstance(exc_info, BaseException): exc_info = (type(exc_info), exc_info, exc_info.__traceback__) elif not isinstance(exc_info, tuple): exc_info = sys.exc_info() record = self._logger.makeRecord(self._logger.name, level, fn, lno, msg, args, exc_info, func, extra, sinfo) self._logger.handle(record) if trace: for handler in self._logger.handlers: if isinstance(handler, RotatingFileHandler): handler.setFormatter(logging.Formatter(original_format_str)) def findCaller(self, stack_info=False, stacklevel=1): f = logging.currentframe() if f is not None: f = f.f_back orig_f = f while f and stacklevel > 1: f = f.f_back stacklevel -= 1 if not f: f = orig_f rv = "(unknown file)", 0, "(unknown function)", None while hasattr(f, "f_code"): co = f.f_code filename = os.path.normcase(co.co_filename) if filename == _srcfile: f = f.f_back continue sinfo = None if stack_info: sio = io.StringIO() sio.write('Stack (most recent call last):\n') traceback.print_stack(f, file=sio) sinfo = sio.getvalue() if sinfo[-1] == '\n': sinfo = sinfo[:-1] sio.close() rv = (co.co_filename, f.f_lineno, co.co_name, sinfo) break return rv