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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
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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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"""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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Takes the memento returned from _push_log_file."""
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global _trace_file
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global _trace_file
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_trace_file.flush()
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class Config(object):
566
"""Configuration of message tracing in bzrlib.
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This implements the context manager protocol and should manage any global
569
variables still used. The default config used is DefaultConfig, but
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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.
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def __exit__(self, exc_type, exc_val, exc_tb):
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return False # propogate exceptions.
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class DefaultConfig(Config):
581
"""A default configuration for tracing of messages in bzrlib.
583
This implements the context manager protocol.
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self._original_filename = _bzr_log_filename
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self._original_state = enable_default_logging()
589
return self # This is bound to the 'as' clause in a with statement.
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def __exit__(self, exc_type, exc_val, exc_tb):
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pop_log_file(self._original_state)
593
global _bzr_log_filename
594
_bzr_log_filename = self._original_filename
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return False # propogate exceptions.