Example of trapping signals to gracefully shut down Cinch bot (for ruby 2+)

bot-trap.rb

require 'cinch'
require 'thread'

mutex = Mutex.new
quit_signalled = ConditionVariable.new
signal_received = nil

bot = Cinch::Bot.new do
  configure do |c|
    c.nick = 'SignalQuitBot'
    c.user = 'SignalQuitBot'
    c.realname = 'SignalQuitBot'
    c.server = 'irc.freenode.net'
    c.port = 6697
    c.ssl.use = true
    c.sasl.username = 'l4bot'
    c.sasl.password = IO.read("#{__dir__}/freenode-config/sasl-password").chomp
    c.channels = ['##leftylink']
    c.verbose = true
  end
end

%w[QUIT INT].each do |signal_name|
  Signal.trap(signal_name) do |signal_number|
    signal_received = signal_number
    quit_signalled.signal
  end
end

Thread.new do
  mutex.synchronize do
    quit_signalled.wait(mutex) until signal_received
    bot.quit("Received #{Signal.signame(signal_received)}")
  end
end

bot.start