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# FIXME: Unfortunately it turns out that python's logging module
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# is quite expensive, even when the message is not printed by any handlers.
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# We should perhaps change back to just simply doing it here.
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# On the other hand, as of 1.2 we generally only call the mutter() statement
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# if (according to debug_flags) we actually intend to write it. So the
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# increased cost of logging.py is not so bad, and we could standardize on
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from bzrlib.lazy_import import lazy_import
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lazy_import(globals(), """
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from cStringIO import StringIO
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from bzrlib.symbol_versioning import (deprecated_function,
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lazy_import(globals(), """
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from bzrlib import debug
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# global verbosity for bzrlib; controls the log level for stderr; 0=normal; <0
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# is quiet; >0 is verbose.
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# File-like object where mutter/debug output is currently sent. Can be
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# changed by _push_log_file etc. This is directly manipulated by some
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# external code; maybe there should be functions to do that more precisely
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# than push/pop_log_file.
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_stderr_handler = None
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# Absolute path for ~/.bzr.log. Not changed even if the log/trace output is
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# redirected elsewhere. Used to show the location in --version.
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_bzr_log_filename = None
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# The time the first message was written to the trace file, so that we can
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# show relative times since startup.
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_bzr_log_start_time = bzrlib._start_time
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# held in a global for quick reference
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# configure convenient aliases for output routines
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_bzr_logger = logging.getLogger('bzr')
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def note(*args, **kwargs):
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# FIXME note always emits utf-8, regardless of the terminal encoding
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# FIXME: clearing the ui and then going through the abstract logging
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# framework is whack; we should probably have a logging Handler that
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# deals with terminal output if needed.
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bzrlib.ui.ui_factory.clear_term()
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_bzr_logger.info(*args, **kwargs)
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def warning(*args, **kwargs):
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bzrlib.ui.ui_factory.clear_term()
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_bzr_logger.warning(*args, **kwargs)
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# configure convenient aliases for output routines
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# TODO: deprecate them, have one name for each.
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log_error = _bzr_logger.error
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error = _bzr_logger.error
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if size <= 4 << 20:
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old_fname = trace_fname + '.old'
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osutils.rename(trace_fname, old_fname)
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from osutils import rename
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rename(trace_fname, old_fname)
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def _get_bzr_log_filename():
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bzr_log = os.environ.get('BZR_LOG')
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home = os.environ.get('BZR_HOME')
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def open_tracefile(tracefilename=None):
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# Messages are always written to here, so that we have some
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# information if something goes wrong. In a future version this
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# file will be removed on successful completion.
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global _file_handler, _bzr_log_file
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if tracefilename is None:
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if sys.platform == 'win32':
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from bzrlib import win32utils
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home = win32utils.get_home_location()
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home = os.path.expanduser('~')
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return os.path.join(home, '.bzr.log')
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"""Open the .bzr.log trace file.
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If the log is more than a particular length, the old file is renamed to
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.bzr.log.old and a new file is started. Otherwise, we append to the
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This sets the global _bzr_log_filename.
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global _bzr_log_filename
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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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tracefilename = os.path.join(home, '.bzr.log')
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trace_fname = os.path.expanduser(tracefilename)
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_rollover_trace_maybe(trace_fname)
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bzr_log_file = open(_bzr_log_filename, 'at', 1) # line buffered
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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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bzr_log_file.write("you can delete or truncate this file, or include sections in\n")
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bzr_log_file.write("bug reports to https://bugs.launchpad.net/bzr/+filebug\n\n")
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#tf = codecs.open(trace_fname, 'at', 'utf8', buffering=LINE_BUFFERED)
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tf = open(trace_fname, 'at', LINE_BUFFERED)
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# tf.tell() on windows always return 0 until some writing done
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tf.write("this is a debug log for diagnosing/reporting problems in bzr\n")
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tf.write("you can delete or truncate this file, or include sections in\n")
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tf.write("bug reports to bazaar@lists.canonical.com\n\n")
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_file_handler = logging.StreamHandler(tf)
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fmt = r'[%(process)5d] %(asctime)s.%(msecs)03d %(levelname)s: %(message)s'
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datefmt = r'%a %H:%M:%S'
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_file_handler.setFormatter(logging.Formatter(fmt, datefmt))
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_file_handler.setLevel(logging.DEBUG)
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logging.getLogger('').addHandler(_file_handler)
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except IOError, e:
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warning("failed to open trace file: %s" % (e))
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# TODO: What should happen if we fail to open the trace file? Maybe the
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# objects should be pointed at /dev/null or the equivalent? Currently
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# returns None which will cause failures later.
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def enable_default_logging():
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"""Configure default logging: messages to stderr and debug to .bzr.log
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This should only be called once per process.
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Non-command-line programs embedding bzrlib do not need to call this. They
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can instead either pass a file to _push_log_file, or act directly on
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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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# create encoded wrapper around stderr
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bzr_log_file = _open_bzr_log()
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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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writer_factory = codecs.getwriter(osutils.get_terminal_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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"""Intercept log and trace messages and send them to a file.
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:param to_file: A file-like object to which messages will be sent.
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:returns: A memento that should be passed to _pop_log_file to restore the
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previously active logging.
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new_handler = logging.StreamHandler(to_file)
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new_handler.setLevel(logging.DEBUG)
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if log_format is None:
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log_format = '%(levelname)8s %(message)s'
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new_handler.setFormatter(logging.Formatter(log_format, date_format))
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# save and remove any existing log handlers
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bzr_logger = logging.getLogger('bzr')
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old_handlers = bzr_logger.handlers[:]
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del bzr_logger.handlers[:]
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# set that as the default logger
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bzr_logger.addHandler(new_handler)
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bzr_logger.setLevel(logging.DEBUG)
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# TODO: check if any changes are needed to the root logger
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# TODO: also probably need to save and restore the level on bzr_logger.
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# but maybe we can avoid setting the logger level altogether, and just set
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# the level on the handler?
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# save the old trace file
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old_trace_file = _trace_file
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# send traces to the new one
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_trace_file = to_file
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result = new_handler, _trace_file
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return ('log_memento', old_handlers, new_handler, old_trace_file, to_file)
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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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Takes the memento returned from _push_log_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
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# file will likely already be closed underneath.
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bzr_logger.handlers = old_handlers
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new_trace_file.flush()
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@symbol_versioning.deprecated_function(symbol_versioning.one_two)
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def enable_test_log(to_file):
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"""Redirect logging to a temporary file for a test
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:returns: an opaque reference that should be passed to disable_test_log
318
after the test completes.
320
return push_log_file(to_file)
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@symbol_versioning.deprecated_function(symbol_versioning.one_two)
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def disable_test_log(memento):
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return pop_log_file(memento)
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@deprecated_function(zero_nine)
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def log_exception(msg=None):
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"""Log the last exception to stderr and the trace file.
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The exception string representation is used as the error
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summary, unless msg is given.
187
log_exception_quietly()
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def log_exception_quietly():
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interesting to developers but not to users. For example,
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195
errors loading plugins.
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mutter(traceback.format_exc())
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def set_verbosity_level(level):
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"""Set the verbosity level.
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:param level: -ve for quiet, 0 for normal, +ve for verbose
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global _verbosity_level
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_verbosity_level = level
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_update_logging_level(level < 0)
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def get_verbosity_level():
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"""Get the verbosity level.
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See set_verbosity_level() for values.
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return _verbosity_level
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def enable_default_logging():
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"""Configure default logging to stderr and .bzr.log"""
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# FIXME: if this is run twice, things get confused
204
global _stderr_handler, _file_handler, _trace_file, _bzr_log_file
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_stderr_handler = logging.StreamHandler()
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logging.getLogger('').addHandler(_stderr_handler)
207
_stderr_handler.setLevel(logging.INFO)
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if not _file_handler:
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_trace_file = _bzr_log_file
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_file_handler.setLevel(logging.DEBUG)
213
_bzr_logger.setLevel(logging.DEBUG)
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216
def be_quiet(quiet=True):
357
# Perhaps this could be deprecated now ...
359
set_verbosity_level(-1)
361
set_verbosity_level(0)
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def _update_logging_level(quiet=True):
365
"""Hide INFO messages if quiet."""
367
_bzr_logger.setLevel(logging.WARNING)
369
_bzr_logger.setLevel(logging.INFO)
217
global _stderr_handler, _stderr_quiet
219
_stderr_quiet = quiet
221
_stderr_handler.setLevel(logging.WARNING)
223
_stderr_handler.setLevel(logging.INFO)
373
"""Is the verbosity level negative?"""
374
return _verbosity_level < 0
378
"""Is the verbosity level positive?"""
379
return _verbosity_level > 0
382
@symbol_versioning.deprecated_function(symbol_versioning.one_two)
383
231
def disable_default_logging():
384
232
"""Turn off default log handlers.
386
Don't call this method, use _push_log_file and _pop_log_file instead.
234
This is intended to be used by the test framework, which doesn't
235
want leakage from the code-under-test into the main logs.
238
l = logging.getLogger('')
239
l.removeHandler(_stderr_handler)
241
l.removeHandler(_file_handler)
245
def enable_test_log(to_file):
246
"""Redirect logging to a temporary file for a test
248
returns an opaque reference that should be passed to disable_test_log
249
after the test completes.
251
disable_default_logging()
254
hdlr = logging.StreamHandler(to_file)
255
hdlr.setLevel(logging.DEBUG)
256
hdlr.setFormatter(logging.Formatter('%(levelname)8s %(message)s'))
257
_bzr_logger.addHandler(hdlr)
258
_bzr_logger.setLevel(logging.DEBUG)
259
result = hdlr, _trace_file, _trace_depth
260
_trace_file = to_file
265
def disable_test_log((test_log_hdlr, old_trace_file, old_trace_depth)):
266
_bzr_logger.removeHandler(test_log_hdlr)
267
test_log_hdlr.close()
270
_trace_file = old_trace_file
271
_trace_depth = old_trace_depth
273
enable_default_logging()
391
276
def report_exception(exc_info, err_file):
392
"""Report an exception to err_file (typically stderr) and to .bzr.log.
394
This will show either a full traceback or a short message as appropriate.
396
:return: The appropriate exit code for this error.
398
277
exc_type, exc_object, exc_tb = exc_info
399
278
# Log the full traceback to ~/.bzr.log
400
279
log_exception_quietly()
401
280
if (isinstance(exc_object, IOError)
402
281
and getattr(exc_object, 'errno', None) == errno.EPIPE):
403
err_file.write("bzr: broken pipe\n")
404
return errors.EXIT_ERROR
282
print >>err_file, "bzr: broken pipe"
405
283
elif isinstance(exc_object, KeyboardInterrupt):
406
err_file.write("bzr: interrupted\n")
407
return errors.EXIT_ERROR
408
elif isinstance(exc_object, ImportError) \
409
and str(exc_object).startswith("No module named "):
410
report_user_error(exc_info, err_file,
411
'You may need to install this Python library separately.')
412
return errors.EXIT_ERROR
284
print >>err_file, "bzr: interrupted"
413
285
elif not getattr(exc_object, 'internal_error', True):
414
286
report_user_error(exc_info, err_file)
415
return errors.EXIT_ERROR
416
287
elif isinstance(exc_object, (OSError, IOError)):
417
288
# Might be nice to catch all of these and show them as something more
418
289
# specific, but there are too many cases at the moment.
419
290
report_user_error(exc_info, err_file)
420
return errors.EXIT_ERROR
422
292
report_bug(exc_info, err_file)
423
return errors.EXIT_INTERNAL_ERROR
426
def print_exception(exc_info, err_file):
427
exc_type, exc_object, exc_tb = exc_info
428
err_file.write("bzr: ERROR: %s.%s: %s\n" % (
429
exc_type.__module__, exc_type.__name__, exc_object))
431
traceback.print_exception(exc_type, exc_object, exc_tb, file=err_file)
434
295
# TODO: Should these be specially encoding the output?
435
def report_user_error(exc_info, err_file, advice=None):
296
def report_user_error(exc_info, err_file):
436
297
"""Report to err_file an error that's not an internal error.
438
299
These don't get a traceback unless -Derror was given.
440
:param exc_info: 3-tuple from sys.exc_info()
441
:param advice: Extra advice to the user to be printed following the
444
301
if 'error' in debug.debug_flags:
445
print_exception(exc_info, err_file)
302
report_bug(exc_info, err_file)
447
err_file.write("bzr: ERROR: %s\n" % (exc_info[1],))
449
err_file.write("%s\n" % (advice,))
304
print >>err_file, "bzr: ERROR:", str(exc_info[1])
452
307
def report_bug(exc_info, err_file):
453
308
"""Report an exception that probably indicates a bug in bzr"""
454
print_exception(exc_info, err_file)
456
err_file.write('bzr %s on python %s (%s)\n' % \
310
exc_type, exc_object, exc_tb = exc_info
311
print >>err_file, "bzr: ERROR: %s.%s: %s" % (
312
exc_type.__module__, exc_type.__name__, exc_object)
314
traceback.print_exception(exc_type, exc_object, exc_tb, file=err_file)
316
print >>err_file, 'bzr %s on python %s (%s)' % \
457
317
(bzrlib.__version__,
458
bzrlib._format_version_tuple(sys.version_info),
460
err_file.write('arguments: %r\n' % sys.argv)
462
'encoding: %r, fsenc: %r, lang: %r\n' % (
463
osutils.get_user_encoding(), sys.getfilesystemencoding(),
464
os.environ.get('LANG')))
465
err_file.write("plugins:\n")
466
for name, a_plugin in sorted(plugin.plugins().items()):
467
err_file.write(" %-20s %s [%s]\n" %
468
(name, a_plugin.path(), a_plugin.__version__))
471
*** Bazaar has encountered an internal error.
472
Please report a bug at https://bugs.launchpad.net/bzr/+filebug
473
including this traceback, and a description of what you
474
were doing when the error occurred.
318
'.'.join(map(str, sys.version_info)),
320
print >>err_file, 'arguments: %r' % sys.argv
322
print >>err_file, "** please send this report to bazaar@lists.ubuntu.com"