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move custom logger to lbrynet directory

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-import on module level __init__
This commit is contained in:
hackrush 2018-07-24 12:42:46 -04:00 committed by Jack Robison
parent e7c57dcabc
commit 62b50dc0ae
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GPG key ID: DF25C68FE0239BB2
3 changed files with 107 additions and 110 deletions
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1
lbrynet/__init__.py
View file

@ -1,4 +1,5 @@
import logging
import customLogger
__version__ = "0.20.4"
version = tuple(__version__.split('.'))

110
lbrynet/core/log_support.py
View file

@ -1,8 +1,6 @@
import inspect
import json
import logging
import logging.handlers
import os
import sys
import traceback
@ -13,25 +11,6 @@ import twisted.python.log
from lbrynet import __version__ as lbrynet_version, build_type, conf
from lbrynet.core import utils
####
# This code is copied from logging/__init__.py in the python source code
####
#
# _srcfile is used when walking the stack to check when we've got the first
# caller stack frame.
#
if hasattr(sys, 'frozen'): # support for py2exe
_srcfile = "logging%s__init__%s" % (os.sep, __file__[-4:])
elif __file__[-4:].lower() in ['.pyc', '.pyo']:
_srcfile = __file__[:-4] + '.py'
else:
_srcfile = __file__
_srcfile = os.path.normcase(_srcfile)
#####
TRACE = 5
class HTTPSHandler(logging.Handler):
def __init__(self, url, fqdn=False, localname=None, facility=None, cookies=None):
@ -185,33 +164,6 @@ class JsonFormatter(logging.Formatter):
return json.dumps(data)
####
# This code is copied from logging/__init__.py in the python source code
####
def findCaller(srcfile=None):
"""Returns the filename, line number and function name of the caller"""
srcfile = srcfile or _srcfile
f = inspect.currentframe()
# On some versions of IronPython, currentframe() returns None if
# IronPython isn't run with -X:Frames.
if f is not None:
f = f.f_back
rv = "(unknown file)", 0, "(unknown function)"
while hasattr(f, "f_code"):
co = f.f_code
filename = os.path.normcase(co.co_filename)
# ignore any function calls that are in this file
if filename == srcfile:
f = f.f_back
continue
rv = (filename, f.f_lineno, co.co_name)
break
return rv
###
def failure(failure, log, msg, *args):
"""Log a failure message from a deferred.
@ -316,65 +268,3 @@ def get_parent(logger_name):
return ''
names = names[:-1]
return '.'.join(names)
class Logger(logging.Logger):
"""A logger that has an extra `fail` method useful for handling twisted failures."""
def fail(self, callback=None, *args, **kwargs):
"""Returns a function to log a failure from an errback.
The returned function appends the error message and extracts
the traceback from `err`.
Example usage:
d.addErrback(log.fail(), 'This is an error message')
Although odd, making the method call is necessary to extract
out useful filename and line number information; otherwise the
reported values are from inside twisted's deferred handling
code.
Args:
callback: callable to call after making the log. The first argument
will be the `err` from the deferred
args: extra arguments to pass into `callback`
Returns: a function that takes the following arguments:
err: twisted.python.failure.Failure
msg: the message to log, using normal logging string iterpolation.
msg_args: the values to subtitute into `msg`
msg_kwargs: set `level` to change from the default ERROR severity. Other
keywoards are treated as normal log kwargs.
"""
fn, lno, func = findCaller()
def _fail(err, msg, *msg_args, **msg_kwargs):
level = msg_kwargs.pop('level', logging.ERROR)
msg += ": %s"
msg_args += (err.getErrorMessage(),)
exc_info = (err.type, err.value, err.getTracebackObject())
record = self.makeRecord(
self.name, level, fn, lno, msg, msg_args, exc_info, func, msg_kwargs)
self.handle(record)
if callback:
try:
return callback(err, *args, **kwargs)
except Exception:
# log.fail is almost always called within an
# errback. If callback fails and we didn't catch
# the exception we would need to attach a second
# errback to deal with that, which we will almost
# never do and then we end up with an unhandled
# error that will get swallowed by twisted
self.exception('Failed to run callback')
return _fail
def trace(self, msg, *args, **kwargs):
if self.isEnabledFor(TRACE):
self._log(TRACE, msg, args, **kwargs)
logging.setLoggerClass(Logger)
logging.addLevelName(TRACE, 'TRACE')

106
lbrynet/customLogger.py Normal file
View file

@ -0,0 +1,106 @@
import os
import sys
import inspect
import logging
TRACE = 5
####
# This code is copied from logging/__init__.py in the python source code
####
#
# _srcfile is used when walking the stack to check when we've got the first
# caller stack frame.
#
if hasattr(sys, 'frozen'): # support for py2exe
_srcfile = "logging%s__init__%s" % (os.sep, __file__[-4:])
elif __file__[-4:].lower() in ['.pyc', '.pyo']:
_srcfile = __file__[:-4] + '.py'
else:
_srcfile = __file__
_srcfile = os.path.normcase(_srcfile)
def findCaller(srcfile=None):
"""Returns the filename, line number and function name of the caller"""
srcfile = srcfile or _srcfile
f = inspect.currentframe()
# On some versions of IronPython, currentframe() returns None if
# IronPython isn't run with -X:Frames.
if f is not None:
f = f.f_back
rv = "(unknown file)", 0, "(unknown function)"
while hasattr(f, "f_code"):
co = f.f_code
filename = os.path.normcase(co.co_filename)
# ignore any function calls that are in this file
if filename == srcfile:
f = f.f_back
continue
rv = (filename, f.f_lineno, co.co_name)
break
return rv
###
class Logger(logging.Logger):
"""A logger that has an extra `fail` method useful for handling twisted failures."""
def fail(self, callback=None, *args, **kwargs):
"""Returns a function to log a failure from an errback.
The returned function appends the error message and extracts
the traceback from `err`.
Example usage:
d.addErrback(log.fail(), 'This is an error message')
Although odd, making the method call is necessary to extract
out useful filename and line number information; otherwise the
reported values are from inside twisted's deferred handling
code.
Args:
callback: callable to call after making the log. The first argument
will be the `err` from the deferred
args: extra arguments to pass into `callback`
Returns: a function that takes the following arguments:
err: twisted.python.failure.Failure
msg: the message to log, using normal logging string iterpolation.
msg_args: the values to subtitute into `msg`
msg_kwargs: set `level` to change from the default ERROR severity. Other
keywoards are treated as normal log kwargs.
"""
fn, lno, func = findCaller()
def _fail(err, msg, *msg_args, **msg_kwargs):
level = msg_kwargs.pop('level', logging.ERROR)
msg += ": %s"
msg_args += (err.getErrorMessage(),)
exc_info = (err.type, err.value, err.getTracebackObject())
record = self.makeRecord(
self.name, level, fn, lno, msg, msg_args, exc_info, func, msg_kwargs)
self.handle(record)
if callback:
try:
return callback(err, *args, **kwargs)
except Exception:
# log.fail is almost always called within an
# errback. If callback fails and we didn't catch
# the exception we would need to attach a second
# errback to deal with that, which we will almost
# never do and then we end up with an unhandled
# error that will get swallowed by twisted
self.exception('Failed to run callback')
return _fail
def trace(self, msg, *args, **kwargs):
if self.isEnabledFor(TRACE):
self._log(TRACE, msg, args, **kwargs)
logging.setLoggerClass(Logger)
logging.addLevelName(TRACE, 'TRACE')