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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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"""Messages and logging for bazaar-ng
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Messages are sent out through the Python logging library.
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They can be sent to two places: to stderr, and to ~/.bzr.log.
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~/.bzr.log gets all messages, and tracebacks of all uncaught
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Normally stderr only gets messages of level INFO and higher, and gets
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only a summary of exceptions, not the traceback.
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"""Messages and logging for bazaar-ng.
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Messages are supplied by callers as a string-formatting template, plus values
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to be inserted into it. The actual %-formatting is deferred to the log
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library so that it doesn't need to be done for messages that won't be emitted.
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Messages are classified by severity levels: critical, error, warning, info,
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They can be sent to two places: to stderr, and to ~/.bzr.log. For purposes
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such as running the test suite, they can also be redirected away from both of
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those two places to another location.
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~/.bzr.log gets all messages, and full tracebacks for uncaught exceptions.
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Output to stderr depends on the mode chosen by the user. By default, messages
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of info and above are sent out, which results in progress messages such as the
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list of files processed by add and commit. In quiet mode, only warnings and
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above are shown. In debug mode, stderr gets debug messages too.
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Errors that terminate an operation are generally passed back as exceptions;
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others may be just emitted as messages.
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Exceptions are reported in a brief form to stderr so as not to look scary.
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BzrErrors are required to be able to format themselves into a properly
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explanatory message. This is not true for builtin excexceptions such as
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KeyError, which typically just str to "0". They're printed in a different
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l.removeHandler(_stderr_handler)
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if _file_handler:
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l.removeHandler(_file_handler)
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def format_exception_short():
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"""Make a short string form of an exception.
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This is used for display to stderr. It specially handles exception
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classes without useful string methods.
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exc_type, exc_info, exc_tb = sys.exc_info()
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if msg and (msg[-1] == '\n'):
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## msg += '\n command: %s' % ' '.join(repr(arg) for arg in sys.argv)
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## msg += '\n pwd: %r' % os.getcwdu()
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## msg += '\n error: %s' % exc_type
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bzrlib/trace.py
