twirem.rb

#! ruby

require "twitter"
require "json"

CONSUMER_KEY = ""
CONSUMER_SECRET = ""
ACCESS_TOKEN = ""
ACCESS_SECRET = ""

STR_BLACK = "\033[30m"
FILL_RED = "\033[41m"
FILL_GREEN = "\033[42m"
RESET = "\033[0m"

LOG_PATH = "/home/domitry/twirem.json"
SCREEN_NAME = "domitry"

def print_red(str); print STR_BLACK, FILL_RED, str, RESET; end
def print_green(str); print STR_BLACK, FILL_GREEN, str, RESET; end

client = Twitter::REST::Client.new do |config|
  config.consumer_key        = CONSUMER_KEY
  config.consumer_secret     = CONSUMER_SECRET
  config.access_token        = ACCESS_TOKEN
  config.access_token_secret = ACCESS_SECRET
end

prev_followers = open(LOG_PATH){|f| JSON.parse(f.map{|l| l}.join)}
now_followers = client.follower_ids.map{|id| id}

removed_ids = prev_followers.reduce([]){|memo, id| (now_followers.index(id).nil? ? memo + [id] : memo)}
new_ids = now_followers.reduce([]){|memo, id| (prev_followers.index(id).nil? ? memo + [id] : memo)}

if removed_ids.length != 0
  client.users(removed_ids).each do |user|
    print_red "-  @" + user.screen_name + "\n"
  end
end

if new_ids.length != 0
  client.users(new_ids).each do |user|
    print_green "+  @" + user.screen_name + "\n"
  end
end

print "Follower num: " + now_followers.length.to_s

str = JSON.generate(now_followers)
File.write(LOG_PATH, str)