logs.py 文件源码

def watch(self, raw_args):
        def tail(_file):
            _file.seek(0, 2)      # Go to the end of the file
            while True:
                line = _file.readline()
                if not line:
                    time.sleep(0.1)
                    continue
                yield line

        _file = open(_log_path, 'r')
        print (Fore.GREEN + '[bitmask] ' +
               Fore.RESET + 'Watching log file %s' % _log_path)
        for line in _file.readlines():
            print line,
        for line in tail(_file):
            print line,