41.63.0.143 - BlackDragon

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41.63.0.143
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File Name : log.py

# Copyright (C) 2012 Canonical Ltd.
# Copyright (C) 2012 Hewlett-Packard Development Company, L.P.
# Copyright (C) 2012 Yahoo! Inc.
#
# Author: Scott Moser <scott.moser@canonical.com>
# Author: Juerg Haefliger <juerg.haefliger@hp.com>
# Author: Joshua Harlow <harlowja@yahoo-inc.com>
#
# This file is part of cloud-init. See LICENSE file for license information.

import collections.abc
import io
import logging
import logging.config
import logging.handlers
import os
import sys
import time

# Logging levels for easy access
CRITICAL = logging.CRITICAL
FATAL = logging.FATAL
ERROR = logging.ERROR
WARNING = logging.WARNING
WARN = logging.WARN
INFO = logging.INFO
DEBUG = logging.DEBUG
NOTSET = logging.NOTSET

# Default basic format
DEF_CON_FORMAT = "%(asctime)s - %(filename)s[%(levelname)s]: %(message)s"

# Always format logging timestamps as UTC time
logging.Formatter.converter = time.gmtime

def setupBasicLogging(level=DEBUG, formatter=None):
    if not formatter:
        formatter = logging.Formatter(DEF_CON_FORMAT)
    root = logging.getLogger()
    for handler in root.handlers:
        if hasattr(handler, "stream") and hasattr(handler.stream, "name"):
            if handler.stream.name == "<stderr>":
                handler.setLevel(level)
                return
    # Didn't have an existing stderr handler; create a new handler
    console = logging.StreamHandler(sys.stderr)
    console.setFormatter(formatter)
    console.setLevel(level)
    root.addHandler(console)
    root.setLevel(level)

def flushLoggers(root):
    if not root:
        return
    for h in root.handlers:
        if isinstance(h, (logging.StreamHandler)):
            try:
                h.flush()
            except IOError:
                pass
    flushLoggers(root.parent)

def setupLogging(cfg=None):
    # See if the config provides any logging conf...
    if not cfg:
        cfg = {}

log_cfgs = []
    log_cfg = cfg.get("logcfg")
    if log_cfg and isinstance(log_cfg, str):
        # If there is a 'logcfg' entry in the config,
        # respect it, it is the old keyname
        log_cfgs.append(str(log_cfg))
    elif "log_cfgs" in cfg:
        for a_cfg in cfg["log_cfgs"]:
            if isinstance(a_cfg, str):
                log_cfgs.append(a_cfg)
            elif isinstance(a_cfg, (collections.abc.Iterable)):
                cfg_str = [str(c) for c in a_cfg]
                log_cfgs.append("\n".join(cfg_str))
            else:
                log_cfgs.append(str(a_cfg))

# See if any of them actually load...
    am_tried = 0
    for log_cfg in log_cfgs:
        try:
            am_tried += 1
            # Assume its just a string if not a filename
            if log_cfg.startswith("/") and os.path.isfile(log_cfg):
                # Leave it as a file and do not make it look like
                # something that is a file (but is really a buffer that
                # is acting as a file)
                pass
            else:
                log_cfg = io.StringIO(log_cfg)
            # Attempt to load its config
            logging.config.fileConfig(log_cfg)
            # The first one to work wins!
            return
        except Exception:
            # We do not write any logs of this here, because the default
            # configuration includes an attempt at using /dev/log, followed
            # up by writing to a file.  /dev/log will not exist in very early
            # boot, so an exception on that is expected.
            pass

# If it didn't work, at least setup a basic logger (if desired)
    basic_enabled = cfg.get("log_basic", True)

sys.stderr.write(
        "WARN: no logging configured! (tried %s configs)\n" % (am_tried)
    )
    if basic_enabled:
        sys.stderr.write("Setting up basic logging...\n")
        setupBasicLogging()

def getLogger(name="cloudinit"):
    return logging.getLogger(name)

def _resetLogger(log):
    """Remove all current handlers, unset log level and add a NullHandler.

(Adding the NullHandler avoids "No handlers could be found for logger XXX"
    messages.)
    """
    if not log:
        return
    handlers = list(log.handlers)
    for h in handlers:
        h.flush()
        h.close()
        log.removeHandler(h)
    log.setLevel(NOTSET)
    log.addHandler(logging.NullHandler())

def resetLogging():
    _resetLogger(logging.getLogger())
    _resetLogger(getLogger())

resetLogging()

# vi: ts=4 expandtab

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	root/root	drwxr-xr-x	2023-04-28 06:08:53
..	dir	-	root/root	drwxr-xr-x	2025-09-17 02:02:24
__pycache__	dir	-	root/root	drwxr-xr-x	2023-04-28 06:08:55
analyze	dir	-	root/root	drwxr-xr-x	2023-04-28 06:08:54
cmd	dir	-	root/root	drwxr-xr-x	2023-04-28 06:08:54
config	dir	-	root/root	drwxr-xr-x	2023-04-28 06:08:54
distros	dir	-	root/root	drwxr-xr-x	2023-04-28 06:08:54
filters	dir	-	root/root	drwxr-xr-x	2023-04-28 06:08:54
handlers	dir	-	root/root	drwxr-xr-x	2023-04-28 06:08:54
mergers	dir	-	root/root	drwxr-xr-x	2023-04-28 06:08:53
net	dir	-	root/root	drwxr-xr-x	2023-04-28 06:08:54
reporting	dir	-	root/root	drwxr-xr-x	2023-04-28 06:08:54
sources	dir	-	root/root	drwxr-xr-x	2023-04-28 06:08:53
__init__.py	inode/x-empty	0 B	root/root	-rw-r--r--	2023-04-20 09:31:09
apport.py	text/x-python	5.74 KB	root/root	-rw-r--r--	2023-04-20 09:31:09
atomic_helper.py	text/x-python	1.38 KB	root/root	-rw-r--r--	2023-04-20 09:31:09
cloud.py	text/x-python	3.49 KB	root/root	-rw-r--r--	2023-04-20 09:31:09
dhclient_hook.py	text/x-python	2.49 KB	root/root	-rw-r--r--	2023-04-20 09:31:09
dmi.py	text/x-python	6.82 KB	root/root	-rw-r--r--	2023-04-20 09:31:09
event.py	text/x-python	2.05 KB	root/root	-rw-r--r--	2023-04-20 09:31:09
features.py	text/x-python	3.07 KB	root/root	-rw-r--r--	2023-04-21 07:44:30
gpg.py	text/x-python	4.32 KB	root/root	-rw-r--r--	2023-04-20 09:31:09
helpers.py	text/x-python	16.43 KB	root/root	-rw-r--r--	2023-04-20 09:31:09
importer.py	text/x-python	1.75 KB	root/root	-rw-r--r--	2023-04-20 09:31:09
log.py	text/x-python	4.33 KB	root/root	-rw-r--r--	2023-04-20 09:31:09
netinfo.py	text/x-python	22.57 KB	root/root	-rw-r--r--	2023-04-20 09:31:09
patcher.py	text/x-python	1.1 KB	root/root	-rw-r--r--	2023-04-20 09:31:09
persistence.py	text/x-c++	2.54 KB	root/root	-rw-r--r--	2023-04-20 09:31:09
registry.py	text/x-python	1.02 KB	root/root	-rw-r--r--	2023-04-20 09:31:09
safeyaml.py	text/x-python	7.72 KB	root/root	-rw-r--r--	2023-04-20 09:31:09
settings.py	text/plain	1.99 KB	root/root	-rw-r--r--	2023-04-20 09:31:09
signal_handler.py	text/x-python	1.78 KB	root/root	-rw-r--r--	2023-04-20 09:31:09
simpletable.py	text/x-python	1.93 KB	root/root	-rw-r--r--	2023-04-20 09:31:09
ssh_util.py	text/x-python	20.71 KB	root/root	-rw-r--r--	2023-04-20 09:31:09
stages.py	text/x-python	34.48 KB	root/root	-rw-r--r--	2023-04-20 09:31:09
subp.py	text/x-python	13.24 KB	root/root	-rw-r--r--	2023-04-20 09:31:09
temp_utils.py	text/x-python	3.19 KB	root/root	-rw-r--r--	2023-04-20 09:31:09
templater.py	text/x-python	5.83 KB	root/root	-rw-r--r--	2023-04-20 09:31:09
type_utils.py	text/x-python	726 B	root/root	-rw-r--r--	2023-04-20 09:31:09
url_helper.py	text/x-python	27.96 KB	root/root	-rw-r--r--	2023-04-20 09:31:09
user_data.py	text/x-python	14.49 KB	root/root	-rw-r--r--	2023-04-20 09:31:09
util.py	text/x-python	90.45 KB	root/root	-rw-r--r--	2023-04-20 09:31:09
version.py	text/plain	591 B	root/root	-rw-r--r--	2023-04-21 07:44:30
warnings.py	text/x-python	3.84 KB	root/root	-rw-r--r--	2023-04-20 09:31:09