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dad0a28b5e
Some devices print non standard characters to logcat. If an error occurs when parsing the output, replace the offending character instead of raising an error.
81 lines
2.5 KiB
Python
81 lines
2.5 KiB
Python
# Copyright 2018 ARM Limited
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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import logging
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from datetime import datetime
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from wa.utils.types import enum
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LogcatLogLevel = enum(['verbose', 'debug', 'info', 'warn', 'error', 'assert'], start=2)
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log_level_map = ''.join(n[0].upper() for n in LogcatLogLevel.names)
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logger = logging.getLogger('logcat')
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class LogcatEvent(object):
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__slots__ = ['timestamp', 'pid', 'tid', 'level', 'tag', 'message']
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def __init__(self, timestamp, pid, tid, level, tag, message):
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self.timestamp = timestamp
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self.pid = pid
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self.tid = tid
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self.level = level
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self.tag = tag
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self.message = message
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def __repr__(self):
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return '{} {} {} {} {}: {}'.format(
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self.timestamp, self.pid, self.tid,
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self.level.name.upper(), self.tag,
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self.message,
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)
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__str__ = __repr__
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class LogcatParser(object):
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def parse(self, filepath):
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with open(filepath, errors='replace') as fh:
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for line in fh:
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event = self.parse_line(line)
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if event:
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yield event
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def parse_line(self, line): # pylint: disable=no-self-use
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line = line.strip()
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if not line or line.startswith('-') or ': ' not in line:
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return None
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metadata, message = line.split(': ', 1)
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parts = metadata.split(None, 5)
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try:
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ts = ' '.join([parts.pop(0), parts.pop(0)])
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timestamp = datetime.strptime(ts, '%m-%d %H:%M:%S.%f').replace(year=datetime.now().year)
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pid = int(parts.pop(0))
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tid = int(parts.pop(0))
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level = LogcatLogLevel.levels[log_level_map.index(parts.pop(0))]
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tag = (parts.pop(0) if parts else '').strip()
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except Exception as e: # pylint: disable=broad-except
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message = 'Invalid metadata for line:\n\t{}\n\tgot: "{}"'
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logger.warning(message.format(line, e))
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return None
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return LogcatEvent(timestamp, pid, tid, level, tag, message)
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