dosage/dosagelib/output.py
2014-01-05 17:37:13 +01:00

96 lines
3.1 KiB
Python

# -*- coding: iso-8859-1 -*-
# Copyright (C) 2004-2005 Tristan Seligmann and Jonathan Jacobs
# Copyright (C) 2012-2014 Bastian Kleineidam
import time
import sys
import os
import threading
import traceback
import codecs
from .ansicolor import Colorizer
lock = threading.Lock()
def get_threadname():
"""Return name of current thread."""
return threading.current_thread().getName()
class Output(object):
"""Print output with context, indentation and optional timestamps."""
def __init__(self, stream=None):
"""Initialize context and indentation."""
self.context = None
self.level = 0
self.timestamps = False
if stream is None:
if hasattr(sys.stdout, "encoding") and sys.stdout.encoding:
self.encoding = sys.stdout.encoding
else:
self.encoding = 'utf-8'
if sys.version_info[0] >= 3:
stream = sys.stdout.buffer
else:
stream = sys.stdout
stream = codecs.getwriter(self.encoding)(stream, 'replace')
self.setStream(stream)
def setStream(self, stream):
"""Initialize context and indentation."""
self.stream = Colorizer(stream)
def info(self, s, level=0):
"""Write an informational message."""
self.write(s, level=level)
def debug(self, s, level=2):
"""Write a debug message."""
self.write(s, level=level, color='white')
def warn(self, s):
"""Write a warning message."""
self.write(u"WARN: %s" % s, color='bold;yellow')
def error(self, s, tb=None):
"""Write an error message."""
self.write(u"ERROR: %s" % s, color='light;red')
#if tb is not None:
# self.write('Traceback (most recent call last):', 1)
def exception(self, s):
"""Write error message with traceback info."""
self.error(s)
type, value, tb = sys.exc_info()
self.writelines(traceback.format_stack(), 1)
self.writelines(traceback.format_tb(tb)[1:], 1)
self.writelines(traceback.format_exception_only(type, value), 1)
def write(self, s, level=0, color=None):
"""Write message with indentation, context and optional timestamp."""
if level > self.level:
return
if self.timestamps:
timestamp = time.strftime(u'%H:%M:%S ')
else:
timestamp = u''
with lock:
if self.context:
self.stream.write(u'%s%s> ' % (timestamp, self.context))
elif self.context is None:
self.stream.write(u'%s%s> ' % (timestamp, get_threadname()))
self.stream.write(u'%s' % s, color=color)
try:
text_type = unicode
except NameError:
text_type = str
self.stream.write(text_type(os.linesep))
self.stream.flush()
def writelines(self, lines, level=0):
"""Write multiple messages."""
for line in lines:
for line in line.rstrip(u'\n').split(u'\n'):
self.write(line.rstrip(u'\n'), level=level)
out = Output()