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logging.getLogger("bzr").
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Output can be redirected away by calling _push_log_file.
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:return: A memento from push_log_file for restoring the log state.
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# Do this before we open the log file, so we prevent
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# get_terminal_encoding() from mutter()ing multiple times
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term_encoding = osutils.get_terminal_encoding()
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start_time = osutils.format_local_date(_bzr_log_start_time,
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timezone='local')
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# create encoded wrapper around stderr
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bzr_log_file = _open_bzr_log()
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if bzr_log_file is not None:
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bzr_log_file.write(start_time.encode('utf-8') + '\n')
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push_log_file(bzr_log_file,
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memento = push_log_file(bzr_log_file,
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r'[%(process)5d] %(asctime)s.%(msecs)03d %(levelname)s: %(message)s',
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r'%Y-%m-%d %H:%M:%S')
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# after hooking output into bzr_log, we also need to attach a stderr
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# handler, writing only at level info and with encoding
323
term_encoding = osutils.get_terminal_encoding()
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writer_factory = codecs.getwriter(term_encoding)
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encoded_stderr = writer_factory(sys.stderr, errors='replace')
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stderr_handler = logging.StreamHandler(encoded_stderr)
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stderr_handler.setLevel(logging.INFO)
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logging.getLogger('bzr').addHandler(stderr_handler)
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def push_log_file(to_file, log_format=None, date_format=None):
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def pop_log_file((magic, old_handlers, new_handler, old_trace_file, new_trace_file)):
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369
"""Undo changes to logging/tracing done by _push_log_file.
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This flushes, but does not close the trace file.
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This flushes, but does not close the trace file (so that anything that was
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374
Takes the memento returned from _push_log_file."""
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global _trace_file
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_trace_file = old_trace_file
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bzr_logger = logging.getLogger('bzr')
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bzr_logger.removeHandler(new_handler)
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# must be closed, otherwise logging will try to close it atexit, and the
379
# must be closed, otherwise logging will try to close it at exit, and the
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# file will likely already be closed underneath.
378
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new_handler.close()
379
382
bzr_logger.handlers = old_handlers
380
new_trace_file.flush()
383
if new_trace_file is not None:
384
new_trace_file.flush()
383
387
def log_exception_quietly():
497
501
elif not getattr(exc_object, 'internal_error', True):
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502
report_user_error(exc_info, err_file)
499
503
return errors.EXIT_ERROR
500
elif isinstance(exc_object, (OSError, IOError)):
504
elif isinstance(exc_object, (OSError, IOError)) or (
505
# GZ 2010-05-20: Like (exc_type is pywintypes.error) but avoid import
506
exc_type.__name__ == "error" and exc_type.__module__ == "pywintypes"):
501
507
# Might be nice to catch all of these and show them as something more
502
508
# specific, but there are too many cases at the moment.
503
509
report_user_error(exc_info, err_file)
552
558
def _flush_trace():
553
# run from atexit hook
559
# called from the bzrlib library finalizer returned by bzrlib.initialize()
554
560
global _trace_file
556
562
_trace_file.flush()
565
class Config(object):
566
"""Configuration of message tracing in bzrlib.
568
This implements the context manager protocol and should manage any global
569
variables still used. The default config used is DefaultConfig, but
570
embedded uses of bzrlib may wish to use a custom manager.
574
return self # This is bound to the 'as' clause in a with statement.
576
def __exit__(self, exc_type, exc_val, exc_tb):
577
return False # propogate exceptions.
580
class DefaultConfig(Config):
581
"""A default configuration for tracing of messages in bzrlib.
583
This implements the context manager protocol.
587
self._original_filename = _bzr_log_filename
588
self._original_state = enable_default_logging()
589
return self # This is bound to the 'as' clause in a with statement.
591
def __exit__(self, exc_type, exc_val, exc_tb):
592
pop_log_file(self._original_state)
593
global _bzr_log_filename
594
_bzr_log_filename = self._original_filename
595
return False # propogate exceptions.