| import contextlib |
| import functools |
| import os.path |
| import sys |
| import traceback |
| from typing import Generator |
|
|
| import pre_commit.constants as C |
| from pre_commit import output |
| from pre_commit.errors import FatalError |
| from pre_commit.store import Store |
| from pre_commit.util import force_bytes |
|
|
|
|
| def _log_and_exit(msg: str, exc: BaseException, formatted: str) -> None: |
| error_msg = f'{msg}: {type(exc).__name__}: '.encode() + force_bytes(exc) |
| output.write_line_b(error_msg) |
|
|
| storedir = Store().directory |
| log_path = os.path.join(storedir, 'pre-commit.log') |
| with contextlib.ExitStack() as ctx: |
| if os.access(storedir, os.W_OK): |
| output.write_line(f'Check the log at {log_path}') |
| log = ctx.enter_context(open(log_path, 'wb')) |
| else: |
| output.write_line(f'Failed to write to log at {log_path}') |
| log = sys.stdout.buffer |
|
|
| _log_line = functools.partial(output.write_line, stream=log) |
| _log_line_b = functools.partial(output.write_line_b, stream=log) |
|
|
| _log_line('### version information') |
| _log_line() |
| _log_line('```') |
| _log_line(f'pre-commit version: {C.VERSION}') |
| _log_line('sys.version:') |
| for line in sys.version.splitlines(): |
| _log_line(f' {line}') |
| _log_line(f'sys.executable: {sys.executable}') |
| _log_line(f'os.name: {os.name}') |
| _log_line(f'sys.platform: {sys.platform}') |
| _log_line('```') |
| _log_line() |
|
|
| _log_line('### error information') |
| _log_line() |
| _log_line('```') |
| _log_line_b(error_msg) |
| _log_line('```') |
| _log_line() |
| _log_line('```') |
| _log_line(formatted.rstrip()) |
| _log_line('```') |
| raise SystemExit(1) |
|
|
|
|
| @contextlib.contextmanager |
| def error_handler() -> Generator[None, None, None]: |
| try: |
| yield |
| except (Exception, KeyboardInterrupt) as e: |
| if isinstance(e, FatalError): |
| msg = 'An error has occurred' |
| elif isinstance(e, KeyboardInterrupt): |
| msg = 'Interrupted (^C)' |
| else: |
| msg = 'An unexpected error has occurred' |
| _log_and_exit(msg, e, traceback.format_exc()) |
|
|
