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# Copyright (C) 2005-2010 Canonical Ltd
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# Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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This sets the global _bzr_log_filename.
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global _bzr_log_filename
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def _open_or_create_log_file(filename):
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"""Open existing log file, or create with ownership and permissions
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It inherits the ownership and permissions (masked by umask) from
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the containing directory to cope better with being run under sudo
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with $HOME still set to the user's homedir.
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flags = os.O_WRONLY | os.O_APPEND | osutils.O_TEXT
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fd = os.open(filename, flags)
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if e.errno != errno.ENOENT:
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fd = os.open(filename, flags | os.O_CREAT | os.O_EXCL, 0666)
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if e.errno != errno.EEXIST:
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osutils.copy_ownership_from_path(filename)
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return os.fdopen(fd, 'at', 0) # unbuffered
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_bzr_log_filename = _get_bzr_log_filename()
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_rollover_trace_maybe(_bzr_log_filename)
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bzr_log_file = _open_or_create_log_file(_bzr_log_filename)
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buffering = 0 # unbuffered
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bzr_log_file = osutils.open_with_ownership(_bzr_log_filename, 'at', buffering)
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# bzr_log_file.tell() on windows always return 0 until some writing done
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bzr_log_file.write('\n')
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if bzr_log_file.tell() <= 2:
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bzr_log_file.write("this is a debug log for diagnosing/reporting problems in bzr\n")
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return bzr_log_file
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except EnvironmentError, e:
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# If we are failing to open the log, then most likely logging has not
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# been set up yet. So we just write to stderr rather than using
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# 'warning()'. If we using warning(), users get the unhelpful 'no
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elif not getattr(exc_object, 'internal_error', True):
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report_user_error(exc_info, err_file)
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return errors.EXIT_ERROR
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elif isinstance(exc_object, (OSError, IOError)) or (
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# GZ 2010-05-20: Like (exc_type is pywintypes.error) but avoid import
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exc_type.__name__ == "error" and exc_type.__module__ == "pywintypes"):
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elif isinstance(exc_object, (OSError, IOError)):
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# Might be nice to catch all of these and show them as something more
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# specific, but there are too many cases at the moment.
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report_user_error(exc_info, err_file)