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# -*- coding: utf-8 -*-
# Description:
# Author: Ilya Mashchenko (ilyam8)
# SPDX-License-Identifier: GPL-3.0-or-later
import os
from threading import Lock
PATH = os.getenv('PATH', '/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin').split(':')
CHART_BEGIN = 'BEGIN {0} {1}\n'
CHART_CREATE = "CHART {0} '{1}' '{2}' '{3}' '{4}' '{5}' {6} {7} {8}\n"
DIMENSION_CREATE = "DIMENSION '{0}' '{1}' {2} {3} {4} '{5}'\n"
DIMENSION_SET = "SET '{0}' = {1}\n"
print_lock = Lock()
def setdefault_values(config, base_dict):
for key, value in base_dict.items():
config.setdefault(key, value)
return config
def run_and_exit(func):
def wrapper(*args, **kwargs):
func(*args, **kwargs)
exit(1)
return wrapper
def on_try_except_finally(on_except=(None,), on_finally=(None,)):
except_func = on_except[0]
finally_func = on_finally[0]
def decorator(func):
def wrapper(*args, **kwargs):
try:
func(*args, **kwargs)
except Exception:
if except_func:
except_func(*on_except[1:])
finally:
if finally_func:
finally_func(*on_finally[1:])
return wrapper
return decorator
def static_vars(**kwargs):
def decorate(func):
for k in kwargs:
setattr(func, k, kwargs[k])
return func
return decorate
@on_try_except_finally(on_except=(exit, 1))
def safe_print(*msg):
"""
:param msg:
:return:
"""
print_lock.acquire()
print(''.join(msg))
print_lock.release()
def find_binary(binary):
"""
:param binary: <str>
:return:
"""
for directory in PATH:
binary_name = os.path.join(directory, binary)
if os.path.isfile(binary_name) and os.access(binary_name, os.X_OK):
return binary_name
return None
def read_last_line(f):
with open(f, 'rb') as opened:
opened.seek(-2, 2)
while opened.read(1) != b'\n':
opened.seek(-2, 1)
if opened.tell() == 0:
break
result = opened.readline()
return result.decode()
def unicode_str(arg):
"""Return the argument as a unicode string.
The `unicode` function has been removed from Python3 and `str` takes its
place. This function is a helper which will try using Python 2's `unicode`
and if it doesn't exist, assume we're using Python 3 and use `str`.
:param arg:
:return: <str>
"""
# TODO: fix
try:
# https://github.com/netdata/netdata/issues/7613
if isinstance(arg, unicode):
return arg
return unicode(arg, errors='ignore')
# https://github.com/netdata/netdata/issues/7642
except TypeError:
return unicode(arg)
except NameError:
return str(arg)
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