cinch-logger.rb

require 'cinch'
require 'logger'

logger = Logger.new('irc.log', 'daily')
logger.level = Logger::INFO

def now
  Time.now.strftime('%Y-%m-%d %H:%M:%S')
end

def log(message)
  logger.info { "[#{now}]#{message}" }
end

bot = Cinch::Bot.new do
  configure do |c|
    c.server = "irc.freenode.org"
    c.channels = ["#bot-test"]
    c.nick = 'peephole-42'
  end

  on :message, /.*/ do |message|
    log("[#{message.channel}][#{message.user}] #{message.message}")
  end
end

%w[QUIT INT].each do |signal_name|
  Signal.trap(signal_name) do |signal_number|
    puts Signal.signame(signal_number)
    logger.close
    bot.quit 'So long and thanks for all the fish'
    return 0
  end
end

bot.start