74
from bzrlib.symbol_versioning import (
79
69
lazy_import(globals(), """
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70
from bzrlib import (
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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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_stderr_handler = None
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_verbosity_level = 0
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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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# 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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"""Output a note to the user.
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Takes the same parameters as logging.info.
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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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ui.ui_factory.clear_term()
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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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ui.ui_factory.clear_term()
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bzrlib.ui.ui_factory.clear_term()
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_bzr_logger.warning(*args, **kwargs)
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@deprecated_function(deprecated_in((2, 1, 0)))
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def info(*args, **kwargs):
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"""Deprecated: use trace.note instead."""
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note(*args, **kwargs)
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@deprecated_function(deprecated_in((2, 1, 0)))
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def log_error(*args, **kwargs):
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"""Deprecated: use bzrlib.trace.show_error instead"""
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_bzr_logger.error(*args, **kwargs)
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@deprecated_function(deprecated_in((2, 1, 0)))
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def error(*args, **kwargs):
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"""Deprecated: use bzrlib.trace.show_error instead"""
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_bzr_logger.error(*args, **kwargs)
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def show_error(*args, **kwargs):
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"""Show an error message to the user.
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Don't use this for exceptions, use report_exception instead.
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_bzr_logger.error(*args, **kwargs)
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log_error = _bzr_logger.error
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error = _bzr_logger.error
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def mutter(fmt, *args):
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if _trace_file is None:
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# XXX: Don't check this every time; instead anyone who closes the file
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# ought to deregister it. We can tolerate None.
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if (getattr(_trace_file, 'closed', None) is not None) and _trace_file.closed:
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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, _bzr_log_filename
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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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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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_bzr_log_filename = os.path.join(home, '.bzr.log')
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_bzr_log_filename = tracefilename
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_bzr_log_filename = os.path.expanduser(_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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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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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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# handlers registered for "bzr"' when something goes wrong on the
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# server. (bug #503886)
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sys.stderr.write("failed to open trace file: %s\n" % (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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:return: A memento from push_log_file for restoring the log state.
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start_time = osutils.format_local_date(_bzr_log_start_time,
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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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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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"""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 (so that anything that was
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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 at exit, and the
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# file will likely already be closed underneath.
381
bzr_logger.handlers = old_handlers
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if new_trace_file is not None:
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new_trace_file.flush()
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#tf = codecs.open(trace_fname, 'at', 'utf8', buffering=LINE_BUFFERED)
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tf = open(_bzr_log_filename, '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 https://bugs.launchpad.net/bzr/+filebug\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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warning("failed to open trace file: %s" % (e))
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def log_exception_quietly():
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"""Log the last exception to the trace file only.
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Used for exceptions that occur internally and that may be
390
interesting to developers but not to users. For example,
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Used for exceptions that occur internally and that may be
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interesting to developers but not to users. For example,
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errors loading plugins.
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mutter(traceback.format_exc())
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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
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global _stderr_handler, _file_handler, _trace_file, _bzr_log_file
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# create encoded wrapper around stderr
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stderr = codecs.getwriter(osutils.get_terminal_encoding())(sys.stderr,
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_stderr_handler = logging.StreamHandler(stderr)
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logging.getLogger('').addHandler(_stderr_handler)
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_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)
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_bzr_logger.setLevel(logging.DEBUG)
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def set_verbosity_level(level):
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"""Set the verbosity level.
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return _verbosity_level > 0
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def debug_memory(message='', short=True):
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"""Write out a memory dump."""
442
if sys.platform == 'win32':
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from bzrlib import win32utils
444
win32utils.debug_memory_win32api(message=message, short=short)
446
_debug_memory_proc(message=message, short=short)
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_short_fields = ('VmPeak', 'VmSize', 'VmRSS')
451
def _debug_memory_proc(message='', short=True):
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status_file = file('/proc/%s/status' % os.getpid(), 'rb')
457
status = status_file.read()
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for line in status.splitlines():
466
for field in _short_fields:
467
if line.startswith(field):
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def _dump_memory_usage(err_file):
474
fd, name = tempfile.mkstemp(prefix="bzr_memdump", suffix=".json")
475
dump_file = os.fdopen(fd, 'w')
476
from meliae import scanner
477
scanner.dump_gc_objects(dump_file)
478
err_file.write("Memory dumped to %s\n" % name)
480
err_file.write("Dumping memory requires meliae module.\n")
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log_exception_quietly()
483
err_file.write("Exception while dumping memory.\n")
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log_exception_quietly()
486
if dump_file is not None:
275
def disable_default_logging():
276
"""Turn off default log handlers.
278
This is intended to be used by the test framework, which doesn't
279
want leakage from the code-under-test into the main logs.
282
l = logging.getLogger('')
283
l.removeHandler(_stderr_handler)
285
l.removeHandler(_file_handler)
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def enable_test_log(to_file):
290
"""Redirect logging to a temporary file for a test
292
returns an opaque reference that should be passed to disable_test_log
293
after the test completes.
295
disable_default_logging()
298
hdlr = logging.StreamHandler(to_file)
299
hdlr.setLevel(logging.DEBUG)
300
hdlr.setFormatter(logging.Formatter('%(levelname)8s %(message)s'))
301
_bzr_logger.addHandler(hdlr)
302
_bzr_logger.setLevel(logging.DEBUG)
303
result = hdlr, _trace_file, _trace_depth
304
_trace_file = to_file
309
def disable_test_log((test_log_hdlr, old_trace_file, old_trace_depth)):
310
_bzr_logger.removeHandler(test_log_hdlr)
311
test_log_hdlr.close()
314
_trace_file = old_trace_file
315
_trace_depth = old_trace_depth
317
enable_default_logging()
491
320
def report_exception(exc_info, err_file):
492
321
"""Report an exception to err_file (typically stderr) and to .bzr.log.
535
347
return errors.EXIT_INTERNAL_ERROR
538
def print_exception(exc_info, err_file):
539
exc_type, exc_object, exc_tb = exc_info
540
err_file.write("bzr: ERROR: %s.%s: %s\n" % (
541
exc_type.__module__, exc_type.__name__, exc_object))
543
traceback.print_exception(exc_type, exc_object, exc_tb, file=err_file)
546
350
# TODO: Should these be specially encoding the output?
547
def report_user_error(exc_info, err_file, advice=None):
351
def report_user_error(exc_info, err_file):
548
352
"""Report to err_file an error that's not an internal error.
550
354
These don't get a traceback unless -Derror was given.
552
:param exc_info: 3-tuple from sys.exc_info()
553
:param advice: Extra advice to the user to be printed following the
356
if 'error' in debug.debug_flags:
357
report_bug(exc_info, err_file)
556
359
err_file.write("bzr: ERROR: %s\n" % (exc_info[1],))
558
err_file.write("%s\n" % (advice,))
561
362
def report_bug(exc_info, err_file):
562
363
"""Report an exception that probably indicates a bug in bzr"""
563
from bzrlib.crash import report_bug
564
report_bug(exc_info, err_file)
567
def _flush_stdout_stderr():
568
# called from the bzrlib library finalizer returned by bzrlib.initialize()
574
if e.errno in [errno.EINVAL, errno.EPIPE]:
581
# called from the bzrlib library finalizer returned by bzrlib.initialize()
587
class Config(object):
588
"""Configuration of message tracing in bzrlib.
590
This implements the context manager protocol and should manage any global
591
variables still used. The default config used is DefaultConfig, but
592
embedded uses of bzrlib may wish to use a custom manager.
596
return self # This is bound to the 'as' clause in a with statement.
598
def __exit__(self, exc_type, exc_val, exc_tb):
599
return False # propogate exceptions.
602
class DefaultConfig(Config):
603
"""A default configuration for tracing of messages in bzrlib.
605
This implements the context manager protocol.
609
self._original_filename = _bzr_log_filename
610
self._original_state = enable_default_logging()
611
return self # This is bound to the 'as' clause in a with statement.
613
def __exit__(self, exc_type, exc_val, exc_tb):
614
pop_log_file(self._original_state)
615
global _bzr_log_filename
616
_bzr_log_filename = self._original_filename
617
return False # propogate exceptions.
365
exc_type, exc_object, exc_tb = exc_info
366
err_file.write("bzr: ERROR: %s.%s: %s\n" % (
367
exc_type.__module__, exc_type.__name__, exc_object))
369
traceback.print_exception(exc_type, exc_object, exc_tb, file=err_file)
371
err_file.write('bzr %s on python %s (%s)\n' % \
373
'.'.join(map(str, sys.version_info)),
375
err_file.write('arguments: %r\n' % sys.argv)
377
'encoding: %r, fsenc: %r, lang: %r\n' % (
378
osutils.get_user_encoding(), sys.getfilesystemencoding(),
379
os.environ.get('LANG')))
380
err_file.write("plugins:\n")
381
for name, a_plugin in sorted(plugin.plugins().items()):
382
err_file.write(" %-20s %s [%s]\n" %
383
(name, a_plugin.path(), a_plugin.__version__))
386
*** Bazaar has encountered an internal error.
387
Please report a bug at https://bugs.launchpad.net/bzr/+filebug
388
including this traceback, and a description of what you
389
were doing when the error occurred.
added
removed
bzrlib/trace.py
