irclogger2irclog/efnet-irclogger-convert.py

import datetime
import sys


assert len(sys.argv) == 2, 'Arg: filename'
filename = sys.argv[1]

date = filename[:10]

with open(filename, 'r') as fp:
	for line in fp:
		origLine = line
		if not (line[0] == '[' and line[3] == ':' and line[6:8] == '] ' and line[-1] == '\n'):
			print(f'MALFORMED LINE: {line!r}', file = sys.stderr)
			continue
		time = line[1:6]
		line = line[8:-1]
		ts = datetime.datetime(int(date[:4]), int(date[5:7]), int(date[8:]), int(time[:2]), int(time[3:]), 0).replace(tzinfo = datetime.timezone.utc).timestamp()
		if line.startswith('<'): #PRIVMSG
			print(f'{ts} PRIVMSG {line}')
		elif line.startswith('* '): #ACTION
			print(f'{ts} ACTION {line[2:]}')
		elif line.startswith('*** '):
			words = line.split(' ')[1:]
			if words[1:3] == ['has', 'joined']: # JOIN
				print(f'{ts} JOIN {words[0]} joins')
			elif words[1:3] == ['has', 'left']: # PART
				print(f'{ts} PART {words[0]} leaves')
			elif words[1:4] == ['has', 'quit', 'IRC']: # QUIT
				print(f'{ts} QUIT {words[0]} quits [{" ".join(words[4:])[1:-1]}]')
			elif words[1:4] == ['was', 'kicked', 'by']: # KICK
				print(f'{ts} KICK {words[0]} is kicked by {words[4]} [{" ".join(words[5:])[1:-1]}]')
			elif words[1:3] == ['sets', 'mode:']: # MODE
				print(f'{ts} MODE {line[4:]}')
			elif words[1:4] == ['changes', 'topic', 'to:']: # TOPIC
				print(f'{ts} TOPIC {words[0]} sets the topic to: {" ".join(words[5:])}')
			elif words[1:5] == ['is', 'now', 'known', 'as']: # NICK
				print(f'{ts} NICK {line[4:]}')
			elif words[1:3] == ['starts', 'logging']: # Silently ignore (there's already a JOIN)
				pass
			else:
				print(f'MALFORMED LINE: {origLine!r}', file = sys.stderr)
		else:
			print(f'MALFORMED LINE: {origLine!r}', file = sys.stderr)