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Code Issues Releases Wiki Activity

Refactor TFWLog

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This commit is contained in:
Kristóf Tóth 2019-06-27 17:18:04 +02:00
parent bcee486463
commit 28c3e68b5a
1 changed files with 12 additions and 40 deletions
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52
lib/tfw/config/log.py
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@ -1,29 +1,18 @@
# pylint: disable=bad-whitespace # pylint: disable=bad-whitespace
from sys import stderr from sys import stderr
from collections import deque
from datetime import datetime from datetime import datetime
from traceback import format_exception, walk_tb
from logging import DEBUG, getLogger, Handler, Formatter, Filter from logging import DEBUG, getLogger, Handler, Formatter, Filter
from .envvars import TFWENV from .envvars import TFWENV
class COLOR: class Color:
BLACK = '\033[30m'
GREY = '\033[30;1m' GREY = '\033[30;1m'
RED = '\033[31m' RED = '\033[31m'
BOLDRED = '\033[31;1m' BOLDRED = '\033[31;1m'
GREEN = '\033[32m'
BOLDGREEN = '\033[32;1m' BOLDGREEN = '\033[32;1m'
ORANGE = '\033[33m'
YELLOW = '\033[33;1m' YELLOW = '\033[33;1m'
BLUE = '\033[34m'
BOLDBLUE = '\033[34;1m'
MAGENTA = '\033[35m'
BOLDMAGENTA = '\033[35;1m'
CYAN = '\033[36m' CYAN = '\033[36m'
BOLDCYAN = '\033[36;1m'
WHITE = '\033[37m'
BOLDWHITE = '\033[37;1m' BOLDWHITE = '\033[37;1m'
RESET = '\033[0m' RESET = '\033[0m'
@ -63,17 +52,16 @@ class TFWLogHandler(Handler):
class TFWLogFormatter(Formatter): class TFWLogFormatter(Formatter):
severity_to_color = { severity_to_color = {
'CRITICAL' : COLOR.BOLDRED, 'CRITICAL' : Color.BOLDRED,
'ERROR' : COLOR.RED, 'ERROR' : Color.RED,
'WARNING' : COLOR.YELLOW, 'WARNING' : Color.YELLOW,
'INFO' : COLOR.BOLDGREEN, 'INFO' : Color.BOLDGREEN,
'DEBUG' : COLOR.BOLDWHITE, 'DEBUG' : Color.BOLDWHITE,
'NOTSET' : COLOR.CYAN 'NOTSET' : Color.CYAN
} }
def __init__(self, limit): def __init__(self, limit):
self.limit = limit self.limit = limit
self.last_trace = None
super().__init__() super().__init__()
def format(self, record): def format(self, record):
@ -87,23 +75,11 @@ class TFWLogFormatter(Formatter):
short_message = record.msg short_message = record.msg
long_message = record.msg long_message = record.msg
if record.exc_info: short_entry = (f'[{Color.GREY}{date}{Color.RESET}|>'
current_trace = self.fetch_exception_origin(record.exc_info[2])
if current_trace != self.last_trace:
self.last_trace = current_trace
trace = '\n'+''.join(format_exception(*record.exc_info))
else:
trace = (f'\nSee previous traceback...\n'
f'{record.exc_info[0].__name__}: {record.exc_info[1]}')
else:
trace = ''
short_entry = (f'[{COLOR.GREY}{date}{COLOR.RESET}|>'
f'{self.severity_to_color[record.levelname]}{record.module}:' f'{self.severity_to_color[record.levelname]}{record.module}:'
f'{record.levelname.lower()}{COLOR.RESET}] {short_message}' f'{record.levelname.lower()}{Color.RESET}] {short_message}')
f'{trace}')
long_entry = (f'[{date}|>{record.module}:{record.levelname.lower()}] ' long_entry = (f'[{date}|>{record.module}:{record.levelname.lower()}] '
f'{long_message}{trace}') f'{long_message}')
return short_entry, long_entry return short_entry, long_entry
def trim(self, value): def trim(self, value):
@ -114,12 +90,8 @@ class TFWLogFormatter(Formatter):
return value_str if len(value_str) <= self.limit else f'{value_str[:self.limit]}...' return value_str if len(value_str) <= self.limit else f'{value_str[:self.limit]}...'
return value return value
@staticmethod
def fetch_exception_origin(trace):
return deque(walk_tb(trace), maxlen=1).pop()
class WhitelistFilter(Filter):
class TFWLogWhitelistFilter(Filter):
def __init__(self, names): def __init__(self, names):
self.names = names self.names = names
super().__init__() super().__init__()
@ -128,7 +100,7 @@ class TFWLogWhitelistFilter(Filter):
return record.module in self.names return record.module in self.names
class TFWLogBlacklistFilter(Filter): class BlacklistFilter(Filter):
def __init__(self, names): def __init__(self, names):
self.names = names self.names = names
super().__init__() super().__init__()