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#
# BitBake Build System Python Library
#
# Copyright (C) 2003 Holger Schurig
# Copyright (C) 2003, 2004 Chris Larson
#
# Based on Gentoo's portage.py.
#
# SPDX-License-Identifier: GPL-2.0-only
#
__version__ = "1.51.1"
import sys
if sys.version_info < (3, 5, 0):
raise RuntimeError("Sorry, python 3.5.0 or later is required for this version of bitbake")
class BBHandledException(Exception):
"""
The big dilemma for generic bitbake code is what information to give the user
when an exception occurs. Any exception inheriting this base exception class
has already provided information to the user via some 'fired' message type such as
an explicitly fired event using bb.fire, or a bb.error message. If bitbake
encounters an exception derived from this class, no backtrace or other information
will be given to the user, its assumed the earlier event provided the relevant information.
"""
pass
import os
import logging
class NullHandler(logging.Handler):
def emit(self, record):
pass
class BBLoggerMixin(object):
def __init__(self, *args, **kwargs):
# Does nothing to allow calling super() from derived classes
pass
def setup_bblogger(self, name):
if name.split(".")[0] == "BitBake":
self.debug = self._debug_helper
def _debug_helper(self, *args, **kwargs):
return self.bbdebug(1, *args, **kwargs)
def debug2(self, *args, **kwargs):
return self.bbdebug(2, *args, **kwargs)
def debug3(self, *args, **kwargs):
return self.bbdebug(3, *args, **kwargs)
def bbdebug(self, level, msg, *args, **kwargs):
loglevel = logging.DEBUG - level + 1
if not bb.event.worker_pid:
if self.name in bb.msg.loggerDefaultDomains and loglevel > (bb.msg.loggerDefaultDomains[self.name]):
return
if loglevel < bb.msg.loggerDefaultLogLevel:
return
return self.log(loglevel, msg, *args, **kwargs)
def plain(self, msg, *args, **kwargs):
return self.log(logging.INFO + 1, msg, *args, **kwargs)
def verbose(self, msg, *args, **kwargs):
return self.log(logging.INFO - 1, msg, *args, **kwargs)
def verbnote(self, msg, *args, **kwargs):
return self.log(logging.INFO + 2, msg, *args, **kwargs)
Logger = logging.getLoggerClass()
class BBLogger(Logger, BBLoggerMixin):
def __init__(self, name, *args, **kwargs):
self.setup_bblogger(name)
super().__init__(name, *args, **kwargs)
logging.raiseExceptions = False
logging.setLoggerClass(BBLogger)
class BBLoggerAdapter(logging.LoggerAdapter, BBLoggerMixin):
def __init__(self, logger, *args, **kwargs):
self.setup_bblogger(logger.name)
super().__init__(logger, *args, **kwargs)
if sys.version_info < (3, 6):
# These properties were added in Python 3.6. Add them in older versions
# for compatibility
@property
def manager(self):
return self.logger.manager
@manager.setter
def manager(self, value):
self.logger.manager = value
@property
def name(self):
return self.logger.name
def __repr__(self):
logger = self.logger
level = logger.getLevelName(logger.getEffectiveLevel())
return '<%s %s (%s)>' % (self.__class__.__name__, logger.name, level)
logging.LoggerAdapter = BBLoggerAdapter
logger = logging.getLogger("BitBake")
logger.addHandler(NullHandler())
logger.setLevel(logging.DEBUG - 2)
mainlogger = logging.getLogger("BitBake.Main")
class PrefixLoggerAdapter(logging.LoggerAdapter):
def __init__(self, prefix, logger):
super().__init__(logger, {})
self.__msg_prefix = prefix
def process(self, msg, kwargs):
return "%s%s" %(self.__msg_prefix, msg), kwargs
# This has to be imported after the setLoggerClass, as the import of bb.msg
# can result in construction of the various loggers.
import bb.msg
from bb import fetch2 as fetch
sys.modules['bb.fetch'] = sys.modules['bb.fetch2']
# Messaging convenience functions
def plain(*args):
mainlogger.plain(''.join(args))
def debug(lvl, *args):
if isinstance(lvl, str):
mainlogger.warning("Passed invalid debug level '%s' to bb.debug", lvl)
args = (lvl,) + args
lvl = 1
mainlogger.bbdebug(lvl, ''.join(args))
def note(*args):
mainlogger.info(''.join(args))
#
# A higher prioity note which will show on the console but isn't a warning
#
# Something is happening the user should be aware of but they probably did
# something to make it happen
#
def verbnote(*args):
mainlogger.verbnote(''.join(args))
#
# Warnings - things the user likely needs to pay attention to and fix
#
def warn(*args):
mainlogger.warning(''.join(args))
def error(*args, **kwargs):
mainlogger.error(''.join(args), extra=kwargs)
def fatal(*args, **kwargs):
mainlogger.critical(''.join(args), extra=kwargs)
raise BBHandledException()
def deprecated(func, name=None, advice=""):
"""This is a decorator which can be used to mark functions
as deprecated. It will result in a warning being emitted
when the function is used."""
import warnings
if advice:
advice = ": %s" % advice
if name is None:
name = func.__name__
def newFunc(*args, **kwargs):
warnings.warn("Call to deprecated function %s%s." % (name,
advice),
category=DeprecationWarning,
stacklevel=2)
return func(*args, **kwargs)
newFunc.__name__ = func.__name__
newFunc.__doc__ = func.__doc__
newFunc.__dict__.update(func.__dict__)
return newFunc
# For compatibility
def deprecate_import(current, modulename, fromlist, renames = None):
"""Import objects from one module into another, wrapping them with a DeprecationWarning"""
import sys
module = __import__(modulename, fromlist = fromlist)
for position, objname in enumerate(fromlist):
obj = getattr(module, objname)
newobj = deprecated(obj, "{0}.{1}".format(current, objname),
"Please use {0}.{1} instead".format(modulename, objname))
if renames:
newname = renames[position]
else:
newname = objname
setattr(sys.modules[current], newname, newobj)
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