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|
import os
import sys
from lib.singleton import Singleton
# Use it to print messages on the screen and to the worker's log.
color_stdout = None # = Colorer(); below the class definition
def color_log(*args, **kwargs):
""" Print the message only to log file, not on the screen. The intention is
use this function only for regular, non-error output that appears every run
and mostly not needed for a user (but useful when investigating occured
problem). Don't hide errors and backtraces (or any other details of an
exceptional circumstances) from the screen, because such details especially
useful with CI bots.
"""
kwargs['log_only'] = True
color_stdout(*args, **kwargs)
class CSchema(object):
objects = {}
def __init__(self):
self.main_objects = {
'diff_mark': {},
'diff_in': {},
'diff_out': {},
'test_pass': {},
'test_fail': {},
'test_new': {},
'test_skip': {},
'test_disa': {},
'error': {},
'lerror': {},
'tail': {},
'ts_text': {},
'path': {},
'info': {},
'separator': {},
't_name': {},
'serv_text': {},
'version': {},
'tr_text': {},
'log': {},
}
self.main_objects.update(self.objects)
class SchemaAscetic(CSchema):
objects = {
'diff_mark': {'fgcolor': 'magenta'},
'diff_in': {'fgcolor': 'green'},
'diff_out': {'fgcolor': 'red'},
'test_pass': {'fgcolor': 'green'},
'test_fail': {'fgcolor': 'red'},
'test_new': {'fgcolor': 'lblue'},
'test_skip': {'fgcolor': 'grey'},
'test_disa': {'fgcolor': 'grey'},
'error': {'fgcolor': 'red'},
'test_var': {'fgcolor': 'yellow'},
}
class SchemaPretty(CSchema):
objects = {
'diff_mark': {'fgcolor': 'magenta'},
'diff_in': {'fgcolor': 'blue'},
'diff_out': {'fgcolor': 'red'},
'test_pass': {'fgcolor': 'green'},
'test_fail': {'fgcolor': 'red'},
'test_new': {'fgcolor': 'lblue'},
'test_skip': {'fgcolor': 'grey'},
'test_disa': {'fgcolor': 'grey'},
'error': {'fgcolor': 'red'},
'lerror': {'fgcolor': 'lred'},
'tail': {'fgcolor': 'lblue'},
'ts_text': {'fgcolor': 'lmagenta'},
'path': {'fgcolor': 'green', 'bold': True},
'info': {'fgcolor': 'yellow', 'bold': True},
'separator': {'fgcolor': 'blue'},
't_name': {'fgcolor': 'lblue'},
'serv_text': {'fgcolor': 'lmagenta'},
'version': {'fgcolor': 'yellow', 'bold': True},
'tr_text': {'fgcolor': 'green'},
'log': {'fgcolor': 'grey'},
'test_var': {'fgcolor': 'yellow'},
}
class Colorer(object):
"""
Colorer/Styler based on VT220+ specifications (Not full). Based on:
1. ftp://ftp.cs.utk.edu/pub/shuford/terminal/dec_vt220_codes.txt
2. http://invisible-island.net/xterm/ctlseqs/ctlseqs.html
"""
__metaclass__ = Singleton
fgcolor = {
"black": '0;30',
"red": '0;31',
"green": '0;32',
"brown": '0;33',
"blue": '0;34',
"magenta": '0;35',
"cyan": '0;36',
"grey": '0;37',
"lgrey": '1;30',
"lred": '1;31',
"lgreen": '1;32',
"yellow": '1;33',
"lblue": '1;34',
"lmagenta": '1;35',
"lcyan": '1;36',
"white": '1;37',
}
bgcolor = {
"black": '0;40',
"red": '0;41',
"green": '0;42',
"brown": '0;43',
"blue": '0;44',
"magenta": '0;45',
"cyan": '0;46',
"grey": '0;47',
"lgrey": '1;40',
"lred": '1;41',
"lgreen": '1;42',
"yellow": '1;43',
"lblue": '1;44',
"lmagenta": '1;45',
"lcyan": '1;46',
"white": '1;47',
}
attributes = {
"bold": '1',
"underline": '4',
"blinking": '5',
"negative": '7',
"invisible": '8',
}
begin = "\033["
end = "m"
disable = begin+'0'+end
def __init__(self):
# These two fields can be filled later. It's for passing output from
# workers via result queue. When worker initializes, it set these
# fields and just use Colorer as before having multiplexed output.
self.queue_msg_wrapper = None
self.queue = None
self.stdout = sys.stdout
self.is_term = self.stdout.isatty()
self.colors = None
if self.is_term:
try:
p = os.popen('tput colors 2>/dev/null')
self.colors = int(p.read())
except: # noqa: E722
pass
finally:
p.close()
schema = os.getenv('TT_SCHEMA', 'ascetic')
if schema == 'ascetic':
self.schema = SchemaAscetic()
elif schema == 'pretty':
self.schema = SchemaPretty()
else:
self.schema = CSchema()
self.schema = self.schema.main_objects
def set_stdout(self):
sys.stdout = self
def ret_stdout(self):
sys.stdout = self.stdout
def _write(self, obj, log_only):
if self.queue:
if self.queue_msg_wrapper:
obj = self.queue_msg_wrapper(obj, log_only)
self.queue.put(obj)
elif not log_only:
self.stdout.write(obj)
def _flush(self):
if not self.queue:
self.stdout.flush()
def write(self, *args, **kwargs):
flags = []
if 'schema' in kwargs:
kwargs.update(self.schema[kwargs['schema']])
for i in self.attributes:
if i in kwargs and kwargs[i] is True:
flags.append(self.attributes[i])
flags.append(self.fgcolor[kwargs['fgcolor']]) \
if 'fgcolor' in kwargs else None
flags.append(self.bgcolor[kwargs['bgcolor']]) \
if 'bgcolor' in kwargs else None
data = ''
if self.is_term and flags:
data += self.begin + (';'.join(flags)) + self.end
for i in args:
data += str(i)
if self.is_term:
# write 'color disable' before newline to better work with parallel
# processes writing signle stdout/stderr
if data.endswith('\n'):
data = data[:-1] + self.disable + '\n'
else:
data += self.disable
if data:
self._write(data, kwargs.get('log_only', False))
self._flush()
def __call__(self, *args, **kwargs):
self.write(*args, **kwargs)
def writeout_unidiff(self, diff):
for i in diff:
if not i.endswith('\n'):
i += "\n\\ No newline\n"
if i.startswith('+'):
self.write(i, schema='diff_in')
elif i.startswith('-'):
self.write(i, schema='diff_out')
elif i.startswith('@'):
self.write(i, schema='diff_mark')
else:
self.write(i)
def flush(self):
return self.stdout.flush()
def fileno(self):
return self.stdout.fileno()
def isatty(self):
return self.is_term
# Globals
#########
color_stdout = Colorer()
|
