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BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=1875 To support Ctrl+S and Ctrl+Q, we enable block queue for log. Cc: Liming Gao <liming.gao@intel.com> Signed-off-by: Bob Feng <bob.c.feng@intel.com> Acked-by: Laszlo Ersek <lersek@redhat.com> Tested-by: Laszlo Ersek <lersek@redhat.com> Acked-by: Liming Gao <liming.gao@intel.com>
384 lines
13 KiB
Python
384 lines
13 KiB
Python
## @file
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# This file implements the log mechanism for Python tools.
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#
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# Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
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# SPDX-License-Identifier: BSD-2-Clause-Patent
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#
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# Copyright 2001-2016 by Vinay Sajip. All Rights Reserved.
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#
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# Permission to use, copy, modify, and distribute this software and its
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# documentation for any purpose and without fee is hereby granted,
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# provided that the above copyright notice appear in all copies and that
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# both that copyright notice and this permission notice appear in
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# supporting documentation, and that the name of Vinay Sajip
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# not be used in advertising or publicity pertaining to distribution
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# of the software without specific, written prior permission.
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# VINAY SAJIP DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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# ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
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# VINAY SAJIP BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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# ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
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# IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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# This copyright is for QueueHandler.
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## Import modules
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from __future__ import absolute_import
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import Common.LongFilePathOs as os, sys, logging
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import traceback
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from .BuildToolError import *
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try:
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from logging.handlers import QueueHandler
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except:
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class QueueHandler(logging.Handler):
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"""
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This handler sends events to a queue. Typically, it would be used together
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with a multiprocessing Queue to centralise logging to file in one process
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(in a multi-process application), so as to avoid file write contention
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between processes.
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This code is new in Python 3.2, but this class can be copy pasted into
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user code for use with earlier Python versions.
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"""
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def __init__(self, queue):
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"""
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Initialise an instance, using the passed queue.
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"""
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logging.Handler.__init__(self)
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self.queue = queue
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def enqueue(self, record):
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"""
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Enqueue a record.
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The base implementation uses put_nowait. You may want to override
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this method if you want to use blocking, timeouts or custom queue
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implementations.
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"""
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self.queue.put_nowait(record)
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def prepare(self, record):
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"""
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Prepares a record for queuing. The object returned by this method is
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enqueued.
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The base implementation formats the record to merge the message
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and arguments, and removes unpickleable items from the record
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in-place.
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You might want to override this method if you want to convert
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the record to a dict or JSON string, or send a modified copy
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of the record while leaving the original intact.
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"""
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# The format operation gets traceback text into record.exc_text
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# (if there's exception data), and also returns the formatted
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# message. We can then use this to replace the original
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# msg + args, as these might be unpickleable. We also zap the
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# exc_info and exc_text attributes, as they are no longer
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# needed and, if not None, will typically not be pickleable.
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msg = self.format(record)
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record.message = msg
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record.msg = msg
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record.args = None
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record.exc_info = None
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record.exc_text = None
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return record
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def emit(self, record):
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"""
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Emit a record.
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Writes the LogRecord to the queue, preparing it for pickling first.
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"""
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try:
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self.enqueue(self.prepare(record))
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except Exception:
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self.handleError(record)
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class BlockQueueHandler(QueueHandler):
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def enqueue(self, record):
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self.queue.put(record,True)
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## Log level constants
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DEBUG_0 = 1
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DEBUG_1 = 2
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DEBUG_2 = 3
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DEBUG_3 = 4
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DEBUG_4 = 5
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DEBUG_5 = 6
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DEBUG_6 = 7
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DEBUG_7 = 8
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DEBUG_8 = 9
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DEBUG_9 = 10
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VERBOSE = 15
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INFO = 20
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WARN = 30
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QUIET = 40
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ERROR = 50
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SILENT = 99
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IsRaiseError = True
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# Tool name
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_ToolName = os.path.basename(sys.argv[0])
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# For validation purpose
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_LogLevels = [DEBUG_0, DEBUG_1, DEBUG_2, DEBUG_3, DEBUG_4, DEBUG_5,
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DEBUG_6, DEBUG_7, DEBUG_8, DEBUG_9, VERBOSE, WARN, INFO,
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ERROR, QUIET, SILENT]
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# For DEBUG level (All DEBUG_0~9 are applicable)
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_DebugLogger = logging.getLogger("tool_debug")
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_DebugFormatter = logging.Formatter("[%(asctime)s.%(msecs)d]: %(message)s", datefmt="%H:%M:%S")
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# For VERBOSE, INFO, WARN level
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_InfoLogger = logging.getLogger("tool_info")
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_InfoFormatter = logging.Formatter("%(message)s")
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# For ERROR level
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_ErrorLogger = logging.getLogger("tool_error")
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_ErrorFormatter = logging.Formatter("%(message)s")
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# String templates for ERROR/WARN/DEBUG log message
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_ErrorMessageTemplate = '\n\n%(tool)s...\n%(file)s(%(line)s): error %(errorcode)04X: %(msg)s\n\t%(extra)s'
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_ErrorMessageTemplateWithoutFile = '\n\n%(tool)s...\n : error %(errorcode)04X: %(msg)s\n\t%(extra)s'
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_WarningMessageTemplate = '%(tool)s...\n%(file)s(%(line)s): warning: %(msg)s'
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_WarningMessageTemplateWithoutFile = '%(tool)s: : warning: %(msg)s'
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_DebugMessageTemplate = '%(file)s(%(line)s): debug: \n %(msg)s'
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#
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# Flag used to take WARN as ERROR.
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# By default, only ERROR message will break the tools execution.
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#
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_WarningAsError = False
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## Log debug message
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#
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# @param Level DEBUG level (DEBUG0~9)
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# @param Message Debug information
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# @param ExtraData More information associated with "Message"
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#
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def debug(Level, Message, ExtraData=None):
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if _DebugLogger.level > Level:
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return
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if Level > DEBUG_9:
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return
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# Find out the caller method information
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CallerStack = traceback.extract_stack()[-2]
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TemplateDict = {
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"file" : CallerStack[0],
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"line" : CallerStack[1],
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"msg" : Message,
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}
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if ExtraData is not None:
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LogText = _DebugMessageTemplate % TemplateDict + "\n %s" % ExtraData
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else:
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LogText = _DebugMessageTemplate % TemplateDict
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_DebugLogger.log(Level, LogText)
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## Log verbose message
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#
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# @param Message Verbose information
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#
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def verbose(Message):
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return _InfoLogger.log(VERBOSE, Message)
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## Log warning message
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#
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# Warning messages are those which might be wrong but won't fail the tool.
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#
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# @param ToolName The name of the tool. If not given, the name of caller
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# method will be used.
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# @param Message Warning information
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# @param File The name of file which caused the warning.
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# @param Line The line number in the "File" which caused the warning.
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# @param ExtraData More information associated with "Message"
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#
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def warn(ToolName, Message, File=None, Line=None, ExtraData=None):
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if _InfoLogger.level > WARN:
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return
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# if no tool name given, use caller's source file name as tool name
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if ToolName is None or ToolName == "":
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ToolName = os.path.basename(traceback.extract_stack()[-2][0])
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if Line is None:
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Line = "..."
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else:
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Line = "%d" % Line
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TemplateDict = {
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"tool" : ToolName,
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"file" : File,
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"line" : Line,
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"msg" : Message,
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}
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if File is not None:
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LogText = _WarningMessageTemplate % TemplateDict
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else:
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LogText = _WarningMessageTemplateWithoutFile % TemplateDict
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if ExtraData is not None:
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LogText += "\n %s" % ExtraData
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_InfoLogger.log(WARN, LogText)
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# Raise an exception if indicated
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if _WarningAsError == True:
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raise FatalError(WARNING_AS_ERROR)
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## Log INFO message
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info = _InfoLogger.info
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## Log ERROR message
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#
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# Once an error messages is logged, the tool's execution will be broken by raising
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# an exception. If you don't want to break the execution later, you can give
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# "RaiseError" with "False" value.
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#
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# @param ToolName The name of the tool. If not given, the name of caller
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# method will be used.
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# @param ErrorCode The error code
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# @param Message Warning information
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# @param File The name of file which caused the error.
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# @param Line The line number in the "File" which caused the warning.
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# @param ExtraData More information associated with "Message"
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# @param RaiseError Raise an exception to break the tool's execution if
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# it's True. This is the default behavior.
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#
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def error(ToolName, ErrorCode, Message=None, File=None, Line=None, ExtraData=None, RaiseError=IsRaiseError):
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if Line is None:
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Line = "..."
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else:
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Line = "%d" % Line
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if Message is None:
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if ErrorCode in gErrorMessage:
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Message = gErrorMessage[ErrorCode]
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else:
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Message = gErrorMessage[UNKNOWN_ERROR]
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if ExtraData is None:
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ExtraData = ""
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TemplateDict = {
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"tool" : _ToolName,
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"file" : File,
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"line" : Line,
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"errorcode" : ErrorCode,
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"msg" : Message,
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"extra" : ExtraData
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}
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if File is not None:
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LogText = _ErrorMessageTemplate % TemplateDict
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else:
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LogText = _ErrorMessageTemplateWithoutFile % TemplateDict
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_ErrorLogger.log(ERROR, LogText)
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if RaiseError and IsRaiseError:
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raise FatalError(ErrorCode)
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# Log information which should be always put out
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quiet = _ErrorLogger.error
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## Initialize log system
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def LogClientInitialize(log_q):
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#
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# Since we use different format to log different levels of message into different
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# place (stdout or stderr), we have to use different "Logger" objects to do this.
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#
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# For DEBUG level (All DEBUG_0~9 are applicable)
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_DebugLogger.setLevel(INFO)
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_DebugChannel = BlockQueueHandler(log_q)
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_DebugChannel.setFormatter(_DebugFormatter)
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_DebugLogger.addHandler(_DebugChannel)
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# For VERBOSE, INFO, WARN level
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_InfoLogger.setLevel(INFO)
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_InfoChannel = BlockQueueHandler(log_q)
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_InfoChannel.setFormatter(_InfoFormatter)
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_InfoLogger.addHandler(_InfoChannel)
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# For ERROR level
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_ErrorLogger.setLevel(INFO)
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_ErrorCh = BlockQueueHandler(log_q)
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_ErrorCh.setFormatter(_ErrorFormatter)
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_ErrorLogger.addHandler(_ErrorCh)
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## Set log level
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#
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# @param Level One of log level in _LogLevel
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def SetLevel(Level):
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if Level not in _LogLevels:
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info("Not supported log level (%d). Use default level instead." % Level)
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Level = INFO
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_DebugLogger.setLevel(Level)
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_InfoLogger.setLevel(Level)
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_ErrorLogger.setLevel(Level)
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## Initialize log system
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def Initialize():
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#
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# Since we use different format to log different levels of message into different
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# place (stdout or stderr), we have to use different "Logger" objects to do this.
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#
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# For DEBUG level (All DEBUG_0~9 are applicable)
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_DebugLogger.setLevel(INFO)
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_DebugChannel = logging.StreamHandler(sys.stdout)
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_DebugChannel.setFormatter(_DebugFormatter)
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_DebugLogger.addHandler(_DebugChannel)
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# For VERBOSE, INFO, WARN level
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_InfoLogger.setLevel(INFO)
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_InfoChannel = logging.StreamHandler(sys.stdout)
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_InfoChannel.setFormatter(_InfoFormatter)
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_InfoLogger.addHandler(_InfoChannel)
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# For ERROR level
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_ErrorLogger.setLevel(INFO)
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_ErrorCh = logging.StreamHandler(sys.stderr)
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_ErrorCh.setFormatter(_ErrorFormatter)
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_ErrorLogger.addHandler(_ErrorCh)
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def InitializeForUnitTest():
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Initialize()
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SetLevel(SILENT)
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## Get current log level
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def GetLevel():
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return _InfoLogger.getEffectiveLevel()
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## Raise up warning as error
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def SetWarningAsError():
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global _WarningAsError
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_WarningAsError = True
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## Specify a file to store the log message as well as put on console
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#
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# @param LogFile The file path used to store the log message
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#
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def SetLogFile(LogFile):
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if os.path.exists(LogFile):
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os.remove(LogFile)
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_Ch = logging.FileHandler(LogFile)
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_Ch.setFormatter(_DebugFormatter)
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_DebugLogger.addHandler(_Ch)
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_Ch= logging.FileHandler(LogFile)
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_Ch.setFormatter(_InfoFormatter)
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_InfoLogger.addHandler(_Ch)
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_Ch = logging.FileHandler(LogFile)
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_Ch.setFormatter(_ErrorFormatter)
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_ErrorLogger.addHandler(_Ch)
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if __name__ == '__main__':
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pass
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