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122 lines
3.8 KiB
122 lines
3.8 KiB
import logging
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import os
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import time
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from pathlib import Path
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from logging.handlers import BaseRotatingHandler
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import zmq
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from common.logging_extra import SwagLogger, SwagFormatter, SwagLogFileFormatter
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from system.hardware import PC
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if PC:
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SWAGLOG_DIR = os.path.join(str(Path.home()), ".comma", "log")
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else:
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SWAGLOG_DIR = "/data/log/"
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def get_file_handler():
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Path(SWAGLOG_DIR).mkdir(parents=True, exist_ok=True)
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base_filename = os.path.join(SWAGLOG_DIR, "swaglog")
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handler = SwaglogRotatingFileHandler(base_filename)
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return handler
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class SwaglogRotatingFileHandler(BaseRotatingHandler):
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def __init__(self, base_filename, interval=60, max_bytes=1024*256, backup_count=2500, encoding=None):
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super().__init__(base_filename, mode="a", encoding=encoding, delay=True)
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self.base_filename = base_filename
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self.interval = interval # seconds
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self.max_bytes = max_bytes
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self.backup_count = backup_count
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self.log_files = self.get_existing_logfiles()
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log_indexes = [f.split(".")[-1] for f in self.log_files]
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self.last_file_idx = max([int(i) for i in log_indexes if i.isdigit()] or [-1])
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self.last_rollover = None
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self.doRollover()
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def _open(self):
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self.last_rollover = time.monotonic()
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self.last_file_idx += 1
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next_filename = f"{self.base_filename}.{self.last_file_idx:010}"
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stream = open(next_filename, self.mode, encoding=self.encoding)
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self.log_files.insert(0, next_filename)
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return stream
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def get_existing_logfiles(self):
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log_files = list()
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base_dir = os.path.dirname(self.base_filename)
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for fn in os.listdir(base_dir):
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fp = os.path.join(base_dir, fn)
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if fp.startswith(self.base_filename) and os.path.isfile(fp):
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log_files.append(fp)
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return sorted(log_files)
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def shouldRollover(self, record):
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size_exceeded = self.max_bytes > 0 and self.stream.tell() >= self.max_bytes
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time_exceeded = self.interval > 0 and self.last_rollover + self.interval <= time.monotonic()
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return size_exceeded or time_exceeded
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def doRollover(self):
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if self.stream:
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self.stream.close()
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self.stream = self._open()
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if self.backup_count > 0:
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while len(self.log_files) > self.backup_count:
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to_delete = self.log_files.pop()
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if os.path.exists(to_delete): # just being safe, should always exist
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os.remove(to_delete)
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class UnixDomainSocketHandler(logging.Handler):
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def __init__(self, formatter):
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logging.Handler.__init__(self)
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self.setFormatter(formatter)
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self.pid = None
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def connect(self):
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self.zctx = zmq.Context()
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self.sock = self.zctx.socket(zmq.PUSH)
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self.sock.setsockopt(zmq.LINGER, 10)
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self.sock.connect("ipc:///tmp/logmessage")
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self.pid = os.getpid()
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def emit(self, record):
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if os.getpid() != self.pid:
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self.connect()
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msg = self.format(record).rstrip('\n')
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# print("SEND".format(repr(msg)))
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try:
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s = chr(record.levelno)+msg
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self.sock.send(s.encode('utf8'), zmq.NOBLOCK)
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except zmq.error.Again:
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# drop :/
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pass
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def add_file_handler(log):
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"""
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Function to add the file log handler to swaglog.
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This can be used to store logs when logmessaged is not running.
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"""
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handler = get_file_handler()
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handler.setFormatter(SwagLogFileFormatter(log))
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log.addHandler(handler)
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cloudlog = log = SwagLogger()
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log.setLevel(logging.DEBUG)
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outhandler = logging.StreamHandler()
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print_level = os.environ.get('LOGPRINT', 'warning')
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if print_level == 'debug':
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outhandler.setLevel(logging.DEBUG)
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elif print_level == 'info':
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outhandler.setLevel(logging.INFO)
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elif print_level == 'warning':
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outhandler.setLevel(logging.WARNING)
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log.addHandler(outhandler)
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# logs are sent through IPC before writing to disk to prevent disk I/O blocking
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log.addHandler(UnixDomainSocketHandler(SwagFormatter(log)))
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