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Colorise the output log 

Modified version from
https://stackoverflow.com/questions/384076/how-can-i-color-python-logging-output

Modifications (from that post) include:
* make flake8 happy by removing whitespaces and whatnot
* move everything into a class
* add the LIGHT_* colors
* remove the magic 30+ offset, assign the real color codes instead
* remove the $BG feature, we don't need background colors
pull/40/head
Peter Hutterer 2018-01-29 10:59:08 +10:00 committed by Benjamin Tissoires
parent 56be286d68
commit dfdface640
1 changed files with 34 additions and 5 deletions
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39
tools/tuhi-kete.py
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@ -26,9 +26,38 @@ import time
import svgwrite
log_format = '%(levelname)s: %(message)s'
class ColorFormatter(logging.Formatter):
BLACK, RED, GREEN, YELLOW, BLUE, MAGENTA, CYAN, LIGHT_GRAY = range(30, 38)
DARK_GRAY, LIGHT_RED, LIGHT_GREEN, LIGHT_YELLOW, LIGHT_BLUE, LIGHT_MAGENTA, LIGHT_CYAN, WHITE = range(90, 98)
COLORS = {
'WARNING': LIGHT_RED,
'INFO': LIGHT_GREEN,
'DEBUG': LIGHT_GRAY,
'CRITICAL': YELLOW,
'ERROR': RED,
}
RESET_SEQ = "\033[0m"
COLOR_SEQ = "\033[%dm"
BOLD_SEQ = "\033[1m"
def __init__(self, *args, **kwargs):
logging.Formatter.__init__(self, *args, **kwargs)
def format(self, record):
levelname = record.levelname
color = self.COLOR_SEQ % (self.COLORS[levelname])
message = logging.Formatter.format(self, record)
message = message.replace("$RESET", self.RESET_SEQ)\
.replace("$BOLD", self.BOLD_SEQ)\
.replace("$COLOR", color)
for k, v in self.COLORS.items():
message = message.replace("$" + k, self.COLOR_SEQ % (v + 30))
return message + self.RESET_SEQ
log_format = '$COLOR%(levelname)s: %(message)s'
logger_handler = logging.StreamHandler()
logger_handler.setFormatter(logging.Formatter(log_format))
logger_handler.setFormatter(ColorFormatter(log_format))
logger = logging.getLogger('tuhi-kete')
logger.addHandler(logger_handler)
logger.setLevel(logging.INFO)
@ -510,7 +539,7 @@ class Printer(Worker):
class TuhiKeteShellLogHandler(logging.StreamHandler):
def __init__(self):
super(TuhiKeteShellLogHandler, self).__init__(sys.stdout)
self.setFormatter(logging.Formatter(log_format))
self.setFormatter(ColorFormatter(log_format))
self._prompt = ''
def emit(self, record):
@ -519,7 +548,7 @@ class TuhiKeteShellLogHandler(logging.StreamHandler):
def set_normal_mode(self):
self.acquire()
self.setFormatter(logging.Formatter(log_format))
self.setFormatter(ColorFormatter(log_format))
self.terminator = '\n'
self._prompt = ''
self.release()
@ -527,7 +556,7 @@ class TuhiKeteShellLogHandler(logging.StreamHandler):
def set_prompt_mode(self, prompt):
self.acquire()
# '\x1b[2K\r' clears the current line and start again from the beginning
self.setFormatter(logging.Formatter(f'\x1b[2K\r{log_format}'))
self.setFormatter(ColorFormatter(f'\x1b[2K\r{log_format}'))
self._prompt = prompt
self.release()