main.rb

require 'twitter'
require 'logger'

TWITTER_LIST_SLUG = 'aspgems-developers'
TRACKED_WORDS = %W(aspgems_dev #dev)

logger = Logger.new('log/aspgemsdev.log')
logger.level = Logger::INFO

def initialize_client(config)
  config.consumer_key        = 'your_consumer_key'
  config.consumer_secret     = 'your_consumer_secret'
  config.access_token        = 'your_access_token'
  config.access_token_secret = 'your_access_token_secret'
end

def should_retweet?(object)
  TRACKED_WORDS.any? {|w| object.text.include? w} && object.is_a?(Twitter::Tweet) && !object.retweeted_tweet?
end

rest_client = Twitter::REST::Client.new do |config|
  logger.info("Initializing Rest Client")
  initialize_client config
end

stream_client = Twitter::Streaming::Client.new do |config|
  logger.info("Initializing Streaming Client")
  initialize_client config
end

logger.info "Loading #{TWITTER_LIST_SLUG} list"
list = rest_client.lists(slug: TWITTER_LIST_SLUG)

users_to_follow = rest_client.list_members(slug: TWITTER_LIST_SLUG)
logger.info("Following these users:\n" + users_to_follow.map{|m| "#{m.screen_name} - #{m.id}"}.join("\n"))

users_to_follow = users_to_follow.map(&:id)

begin
  stream_client.filter(follow: users_to_follow.join(',')) do |object|
    logger.info(object.inspect)
    if should_retweet?(object)
      rest_client.retweet(object)
      logger.info("RT #{object.id}")
    end
    logger.warn("Stall warning!!!") if object.is_a?(Twitter::Streaming::StallWarning)
  end
rescue Twitter::Error::TooManyRequests
  sleep 1.hour
  retry
rescue => e
  logger.error(e)
end