102 lines
2.5 KiB
Python
102 lines
2.5 KiB
Python
import logging
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import sys
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from contextlib import contextmanager
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from functools import wraps
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from typing import NoReturn, Union, TextIO, Optional, Callable
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from traceback_with_variables.core import Format, iter_exc_lines, iter_cur_tb_lines
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class LoggerAsFile:
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def __init__(self, logger: logging.Logger, separate_lines: bool = False):
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self.logger = logger
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self.separate_lines = separate_lines
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self.lines = []
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def flush(self) -> NoReturn:
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if self.lines:
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self.logger.error('\n '.join(self.lines))
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def write(self, text: str) -> NoReturn:
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if self.separate_lines:
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self.logger.error(text.rstrip('\n'))
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else:
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self.lines.append(text.rstrip('\n'))
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def print_exc(
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e: Optional[Exception] = None,
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num_skipped_frames: int = 0,
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fmt: Format = Format(),
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file_: Union[TextIO, LoggerAsFile] = sys.stderr,
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) -> NoReturn:
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for line in iter_exc_lines(
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e=e,
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num_skipped_frames=num_skipped_frames,
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fmt=fmt,
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for_file=file_,
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):
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file_.write(line + '\n')
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file_.flush()
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def print_cur_tb(
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num_skipped_frames: int = 0,
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fmt: Format = Format(),
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file_: Union[TextIO, LoggerAsFile] = sys.stderr,
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) -> NoReturn:
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for line in iter_cur_tb_lines(
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num_skipped_frames=num_skipped_frames,
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fmt=fmt,
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for_file=file_,
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):
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file_.write(line + '\n')
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file_.flush()
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@contextmanager
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def printing_exc(
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reraise: bool = True,
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file_: Union[TextIO, LoggerAsFile] = sys.stderr,
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skip_cur_frame: bool = False,
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fmt: Format = Format(),
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):
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try:
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yield
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except Exception as e:
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print_exc(
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e=e,
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num_skipped_frames=2 if skip_cur_frame else 1,
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fmt=fmt,
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file_=file_
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)
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if reraise:
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raise e
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def prints_exc(
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func__for_noncall_case_only: Optional[Callable] = None, # to call without "()"
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file_: Union[TextIO, LoggerAsFile] = sys.stderr,
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fmt: Format = Format(),
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):
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if func__for_noncall_case_only:
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return prints_exc(file_=file_, fmt=fmt)(func__for_noncall_case_only)
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def decorator(func):
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@wraps(func)
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def wrapper(*args, **kwargs):
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with printing_exc(
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reraise=True,
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file_=file_,
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skip_cur_frame=True,
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fmt=fmt,
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):
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return func(*args, **kwargs)
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return wrapper
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return decorator
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