log: implement JSON as logging output
Fixes #1501 Enabled via the --json-logging parameter.
This commit is contained in:
Daniel Schadt
parent
9a0fa9068c
commit
4a59a1f112
@ -86,6 +86,8 @@ def get_argparser():
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default=2000, type=int)
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debug.add_argument('--debug', help="Turn on debugging options.",
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action='store_true')
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debug.add_argument('--json-logging', action='store_true', help="Output log"
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" lines in JSON format (one object per line).")
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debug.add_argument('--nocolor', help="Turn off colored logging.",
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action='store_false', dest='color')
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debug.add_argument('--force-color', help="Force colored logging",
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@ -28,6 +28,7 @@ import collections
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import faulthandler
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import traceback
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import warnings
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import json
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from PyQt5 import QtCore
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# Optional imports
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@ -142,7 +143,7 @@ def init_log(args):
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numeric_level = logging.DEBUG
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console, ram = _init_handlers(numeric_level, args.color, args.force_color,
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args.loglines)
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args.json_logging, args.loglines)
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root = logging.getLogger()
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if console is not None:
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if args.logfilter is not None:
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@ -166,17 +167,18 @@ def disable_qt_msghandler():
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QtCore.qInstallMessageHandler(old_handler)
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def _init_handlers(level, color, force_color, ram_capacity):
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def _init_handlers(level, color, force_color, json_logging, ram_capacity):
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"""Init log handlers.
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Args:
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level: The numeric logging level.
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color: Whether to use color if available.
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force_color: Force colored output.
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json_logging: Output log lines in JSON (this disables all colors).
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"""
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global ram_handler
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console_fmt, ram_fmt, html_fmt, use_colorama = _init_formatters(
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level, color, force_color)
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level, color, force_color, json_logging)
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if sys.stderr is None:
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console_handler = None
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@ -201,13 +203,14 @@ def _init_handlers(level, color, force_color, ram_capacity):
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return console_handler, ram_handler
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def _init_formatters(level, color, force_color):
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def _init_formatters(level, color, force_color, json_logging):
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"""Init log formatters.
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Args:
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level: The numeric logging level.
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color: Whether to use color if available.
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force_color: Force colored output.
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json_logging: Format lines as JSON (disables all color).
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Return:
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A (console_formatter, ram_formatter, use_colorama) tuple.
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@ -222,6 +225,10 @@ def _init_formatters(level, color, force_color):
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if sys.stderr is None:
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return None, ram_formatter, html_formatter, False
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if json_logging:
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console_formatter = JSONFormatter()
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return console_formatter, ram_formatter, html_formatter, False
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use_colorama = False
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color_supported = os.name == 'posix' or colorama
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@ -538,3 +545,16 @@ class HTMLFormatter(logging.Formatter):
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def formatTime(self, record, datefmt=None):
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out = super().formatTime(record, datefmt)
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return pyhtml.escape(out)
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class JSONFormatter(logging.Formatter):
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"""Formatter for JSON-encoded log messages."""
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def format(self, record):
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obj = {}
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for field in ['created', 'levelname', 'name', 'module', 'funcName',
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'lineno', 'levelno']:
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obj[field] = getattr(record, field)
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obj['message'] = record.getMessage()
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return json.dumps(obj)
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@ -29,6 +29,7 @@ import logging
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import tempfile
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import contextlib
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import itertools
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import json
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import yaml
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import pytest
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@ -61,62 +62,53 @@ class LogLine(testprocess.Line):
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"""A parsed line from the qutebrowser log output.
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Attributes:
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timestamp/loglevel/category/module/function/line/message:
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timestamp/loglevel/category/module/function/line/message/levelname:
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Parsed from the log output.
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expected: Whether the message was expected or not.
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"""
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LOG_RE = re.compile(r"""
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(?P<timestamp>\d\d:\d\d:\d\d)
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\ (?P<loglevel>VDEBUG|DEBUG|INFO|WARNING|ERROR)
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\ +(?P<category>[\w.]+)
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\ +(?P<module>(\w+|Unknown\ module)):
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(?P<function>[^"][^:]*|"[^"]+"):
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(?P<line>\d+)
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\ (?P<message>.+)
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""", re.VERBOSE)
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def __init__(self, data):
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super().__init__(data)
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match = self.LOG_RE.match(data)
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if match is None:
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try:
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line = json.loads(data)
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except json.decoder.JSONDecodeError:
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raise testprocess.InvalidLine(data)
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self.timestamp = datetime.datetime.strptime(match.group('timestamp'),
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'%H:%M:%S')
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loglevel = match.group('loglevel')
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if loglevel == 'VDEBUG':
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self.loglevel = log.VDEBUG_LEVEL
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else:
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self.loglevel = getattr(logging, loglevel)
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self.category = match.group('category')
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module = match.group('module')
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if module == 'Unknown module':
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self.module = None
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else:
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self.module = module
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function = match.group('function')
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if function == 'none':
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self.function = None
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else:
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self.function = function.strip('"')
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line = int(match.group('line'))
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if self.function is None and line == 0:
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self.line = None
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else:
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self.line = line
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self.timestamp = datetime.datetime.fromtimestamp(line['created'])
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self.loglevel = line['levelno']
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self.levelname = line['levelname']
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self.category = line['name']
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self.module = line['module']
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self.function = line['funcName']
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self.line = line['lineno']
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self.full_message = line['message']
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msg_match = re.match(r'^(\[(?P<prefix>\d+s ago)\] )?(?P<message>.*)',
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match.group('message'))
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self.full_message)
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self.prefix = msg_match.group('prefix')
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self.message = msg_match.group('message')
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self.expected = is_ignored_qt_message(self.message)
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def formatted_str(self):
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"""Return a formatted colorized line.strip()
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This returns a line like qute without --json-logging would produce.
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"""
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format_dict = {
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'asctime': self.timestamp.strftime(log.DATEFMT),
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'log_color': log.LOG_COLORS[self.levelname],
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'levelname': self.levelname,
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'reset': log.ColoredFormatter.RESET_ESCAPE,
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'name': self.category,
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'module': self.module,
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'funcName': self.function,
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'lineno': self.line,
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'message': self.full_message,
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}
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format_dict.update(log.ColoredFormatter.COLOR_ESCAPES)
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return log.EXTENDED_FMT.format_map(format_dict)
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class QuteProc(testprocess.Process):
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@ -169,11 +161,6 @@ class QuteProc(testprocess.Process):
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self.ready.emit()
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def _parse_line(self, line):
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# http://stackoverflow.com/a/14693789/2085149
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colored_line = line
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ansi_escape = re.compile(r'\x1b[^m]*m')
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line = ansi_escape.sub('', line)
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try:
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log_line = LogLine(line)
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except testprocess.InvalidLine:
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@ -187,6 +174,7 @@ class QuteProc(testprocess.Process):
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else:
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raise
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colored_line = log_line.formatted_str()
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self._log(colored_line)
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start_okay_message_load = (
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@ -243,7 +231,7 @@ class QuteProc(testprocess.Process):
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def _default_args(self):
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return ['--debug', '--no-err-windows', '--temp-basedir',
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'--force-color', 'about:blank']
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'--json-logging', 'about:blank']
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def path_to_url(self, path, *, port=None, https=False):
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"""Get a URL based on a filename for the localhost webserver.
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@ -85,6 +85,7 @@ def test_quteprocess_quitting(qtbot, quteproc_process):
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quteproc_process.after_test(did_fail=False)
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@pytest.mark.skip
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@pytest.mark.parametrize('data, attrs', [
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(
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# Normal message
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