This is a solution to the problem about acting on a log file as it is being written to, without much of a hassle. There's a way to do it purely in Python, but why do it when we can RE use it??
It goes like this:

--- cut here ---

import re
import subprocess

log = '/home/user/log'

f = subprocess.Popen(['tail', '-F', log], stdout=subprocess.PIPE)

while True:
line = f.stdout.readline()
match = re.search(b'debug', line) # search for pattern
if match:
# do something!

--- cut here ---

Subprocess is used to open a tail process and send data to stdout, then there's an infinite loop that keeps reading a line and searches for a pattern to trigger an action.
The main reason this should be used is to answer to logs in a fast way. It processes all lines passed through it. So, overall, pretty easy to use.

--- Mystic BBS v1.12 A47 2021/12/25 (Windows/32)
* Origin: d i s t o r t i o n // d1st.org (911:1423/0)

This is a solution to the problem about acting on a log file as it is being written to, without much of a hassle. There's a way to do it
purely in Python, but why do it when we can RE use it??

The main reason this should be used is to answer to logs in a fast way.
It processes all lines passed through it. So, overall, pretty easy to
use.

Simple pimple - thanks for sharing your log watcher!



|07p|15AULIE|1142|07o
|08.........

--- Mystic BBS v1.12 A49 2024/05/29 (Linux/64)
* Origin: 2o fOr beeRS bbS>>20ForBeers.com:1337 (911:1503/0)