如何将超过 maxBytes 后将在 rotationFileHandler 中创建的日志文件重命名为当前 datetime.log？

这就是如何覆盖 doRollover() 以将备份文件名作为当前 datetime.log myRotatingFileHandler.py

import datetime 
import os
import sys
import logging
from logging.handlers import BaseRotatingHandler
import time

class myRotatingFileHandler(BaseRotatingHandler):
def __init__(self, filename, mode='a', maxBytes=0, backupCount=0, encoding=None, delay=0):
    dateTime = datetime.datetime.now().strftime('%d-%m-%Y-%H-%M-%S')

    filename = filename +'/log-'+dateTime+'.log'
    if maxBytes > 0:
        mode = 'a'
    BaseRotatingHandler.__init__(self, filename, mode, encoding, delay)
    self.maxBytes = maxBytes
    self.backupCount = backupCount

def doRollover(self):
    dateTime = datetime.datetime.now().strftime('%d-%m-%Y-%H-%M-%S')
    #fileName = 'log-'+dateTime+'.log'
    df = ''
    if self.stream:
        self.stream.close()
        self.stream = None
    if self.backupCount > 0:
        for i in range(self.backupCount - 1, 0, -1):
            sf = self.baseFilename+'/'+'log-'+ datetime.datetime.now().strftime('%d-%m-%Y-%H-%M-%S') + '.log'
            df = self.baseFilename+'/'+'log-'+ datetime.datetime.now().strftime('%d-%m-%Y-%H-%M-%S') + '.log'
            if os.path.exists(sf):
                if os.path.exists(df):
                    os.remove(df)
                os.rename(sf, df)
        wkspFldr = os.path.dirname(self.baseFilename)
        df = wkspFldr+'/'+'log-'+ datetime.datetime.now().strftime('%d-%m-%Y-%H-%M-%S') + '.log'
        print 'LOG FILE ---> ',df
        if os.path.exists(df):
            os.remove(df)
        if os.path.exists(self.baseFilename):
            os.rename(self.baseFilename, df)
    if not self.delay:
        self.stream = self._open()

def shouldRollover(self, record):
    if self.stream is None:                 
        self.stream = self._open()
    if self.maxBytes > 0:                   
        msg = "%s\n" % self.format(record)
        self.stream.seek(0, 2)  #due to non-posix-compliant Windows feature
        if self.stream.tell() + len(msg) >= self.maxBytes:
            return 1
    return 0

这是我们有记录器功能config.py的 .py 代码

import logging
import os
import datetime
from logging.handlers import RotatingFileHandler
import time
from subprocess import call
from time import gmtime, strftime
import re
import logging.handlers

import myRotatingFileHandler

path = ''
Interval = ''
Value = 0

class config:
def __init__(self, givenPath, interval, value):
    global path
    global Interval
    global Value
    path = givenPath
    Interval = interval
    Value = value

def remove_file_by_days(self):
    now = time.time()
    cutoff = now - (value * 86400)
    files = os.listdir(path)
    file_path = os.path.join(path)

    for xfile in files:
        filePath = file_path + xfile
        if os.path.isfile(filePath):
            t = os.stat(filePath)
            c = t.st_ctime
            if c < cutoff:
                print 'removing file...'
                print filePath
                os.remove(filePath)

def remove_file_by_hours(self):
    dir_to_search = os.listdir(path)
    for file in filenames:
        curpath = os.path.join(path, file)
        file_modified = datetime.fromtimestamp(os.path.getmtime(curpath))
        if datetime.datetime.now() - file_modified > datetime.timedelta(hours = Value):
            print 'removing file...'
            print curpath
            os.remove(curpath)

def remove_file_by_minutes(self):
    dir_to_search = os.listdir(path)
    for file in dir_to_search:
        curpath = os.path.join(path, file)
        file_modified = datetime.datetime.fromtimestamp(os.path.getmtime(curpath))
        if datetime.datetime.now() - file_modified > datetime.timedelta(hours = Value/60 ):
            print 'removing file...'
            print curpath
            os.remove(curpath)

def logger(self , inputStr):
    dateTime = datetime.datetime.now().strftime('%d-%m-%Y-%H-%M-%S')
    fileName = 'log-'+dateTime+'.log'
    Path = path
    logger = logging.getLogger("Rotating Log")
    logger.setLevel(logging.DEBUG)
    formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
    handler = myRotatingFileHandler.myRotatingFileHandler(Path, maxBytes=1024000*10, backupCount=5)
    handler.setFormatter(formatter)
    logger.addHandler(handler)

    for i in range(1000000):
        logger.debug("This is test log line %s" % i)

def debug(self, inputStr):
    if Interval == 'days':
        self.remove_file_by_days()
    if Interval == 'hours':
        self.remove_file_by_hours()
    if Interval == 'minutes':
        self.remove_file_by_minutes()
    self.logger(inputStr)

调用主logMain.py

import logging
import os
import sys
import config
from config import config

if __name__ == '__main__':
obj = config('/var/www/cgi-bin/pythonPractice/test/','minutes', 2)
obj.debug('abc')

总的来说，这个程序会根据天数、小时数和分钟数从给定路径中删除日志文件。并创建名为 current datetime.log 的日志文件，如果日志文件超过 10 mb，它将创建名为 current datetime.log 的其他日志文件。