複数画像付きでツイートするRubyスクリプト（呼び出すたびに違うツイート用）

media-tweet.rb

#!/usr/bin/env ruby

require 'twitter'

CLIENT = Twitter::REST::Client.new do |config|
  config.consumer_key        = "XXXXXXXXXXXXXXXXXXXXXXXXX"
  config.consumer_secret     = "ssssssssssssssssssssssssssssssssssssssssssssssssss"
  config.access_token        = "0000000-tttttttttttttttttttttttttttttttttttttttttt"
  config.access_token_secret = "yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy"
end

# https://github.com/sferik/twitter/issues/638#issuecomment-70414311
# dir/0.txt
# dir/1.png (or jpg, ...)
# dir/2.png
# dir/3.png
# dir/4.png
def media_tweet(dir)
  files = Dir.glob("#{dir}/[01234].*").sort
  tweet_filename = files.shift
  tweet = File.read(tweet_filename)
  media_ids = []
  files.each do |media_filename|
    media_ids << CLIENT.upload(File.new(media_filename))
  end
  CLIENT.update tweet, { media_ids: media_ids.join(',') }
end

MEDIA_COUNT = "media-count.txt"

dirs = Dir.glob('media/*').sort
count = File.read(MEDIA_COUNT).to_i
media_tweet(dirs[count % dirs.size])
count += 1
File.write(MEDIA_COUNT, count.to_s)

# vim: set filetype=ruby:

こちらもごらんください。
http://snap.textfile.org/20151016100822