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129 lines
4.8 KiB
Python
129 lines
4.8 KiB
Python
# Copyright 2019, David Wilson
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# 3. Neither the name of the copyright holder nor the names of its contributors
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# may be used to endorse or promote products derived from this software without
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# specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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from __future__ import absolute_import
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import logging
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import os
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import mitogen.core
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import mitogen.utils
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try:
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from __main__ import display
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except ImportError:
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from ansible.utils.display import Display
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display = Display()
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#: The process name set via :func:`set_process_name`.
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_process_name = None
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#: The PID of the process that last called :func:`set_process_name`, so its
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#: value can be ignored in unknown fork children.
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_process_pid = None
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def set_process_name(name):
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"""
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Set a name to adorn log messages with.
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"""
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global _process_name
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_process_name = name
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global _process_pid
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_process_pid = os.getpid()
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class Handler(logging.Handler):
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"""
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Use Mitogen's log format, but send the result to a Display method.
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"""
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def __init__(self, normal_method):
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logging.Handler.__init__(self)
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self.formatter = mitogen.utils.log_get_formatter()
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self.normal_method = normal_method
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#: Set of target loggers that produce warnings and errors that spam the
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#: console needlessly. Their log level is forced to INFO. A better strategy
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#: may simply be to bury all target logs in DEBUG output, but not by
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#: overriding their log level as done here.
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NOISY_LOGGERS = frozenset([
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'dnf', # issue #272; warns when a package is already installed.
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'boto', # issue #541; normal boto retry logic can cause ERROR logs.
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])
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def emit(self, record):
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mitogen_name = getattr(record, 'mitogen_name', '')
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if mitogen_name == 'stderr':
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record.levelno = logging.ERROR
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if mitogen_name in self.NOISY_LOGGERS and record.levelno >= logging.WARNING:
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record.levelno = logging.DEBUG
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if _process_pid == os.getpid():
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process_name = _process_name
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else:
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process_name = '?'
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s = '[%-4s %d] %s' % (process_name, os.getpid(), self.format(record))
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if record.levelno >= logging.ERROR:
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display.error(s, wrap_text=False)
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elif record.levelno >= logging.WARNING:
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display.warning(s, formatted=True)
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else:
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self.normal_method(s)
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def setup():
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"""
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Install handlers for Mitogen loggers to redirect them into the Ansible
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display framework. Ansible installs its own logging framework handlers when
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C.DEFAULT_LOG_PATH is set, therefore disable propagation for our handlers.
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"""
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l_mitogen = logging.getLogger('mitogen')
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l_mitogen_io = logging.getLogger('mitogen.io')
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l_ansible_mitogen = logging.getLogger('ansible_mitogen')
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l_operon = logging.getLogger('operon')
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for logger in l_mitogen, l_mitogen_io, l_ansible_mitogen, l_operon:
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logger.handlers = [Handler(display.vvv)]
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logger.propagate = False
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if display.verbosity > 2:
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l_ansible_mitogen.setLevel(logging.DEBUG)
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l_mitogen.setLevel(logging.DEBUG)
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else:
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# Mitogen copies the active log level into new children, allowing them
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# to filter tiny messages before they hit the network, and therefore
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# before they wake the IO loop. Explicitly setting INFO saves ~4%
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# running against just the local machine.
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l_mitogen.setLevel(logging.ERROR)
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l_ansible_mitogen.setLevel(logging.ERROR)
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if display.verbosity > 3:
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l_mitogen_io.setLevel(logging.DEBUG)
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