tsv-generate.rb

#!/usr/bin/env ruby

num_times = (ARGV[0] || "1_000_000").gsub(/_/,'').to_i
seed = (ARGV[0] || Time.now).to_i
# $stderr.puts "seed is #{seed}"
srand(seed)

time = Time.now.to_f
users = %w[Ace Beer Charlie Don Edward Freddie George Harry Ink Johnnie King London Monkey Nuts Orange Pip Queen Robert Sugar Toc Uncle Vic William Xray Yorker Zebra]
num_times.times do |user|
  time += 1 if rand > 0.7
  puts [
    (time * 1000 + rand(1000)).to_i,
    time.to_i,
    users[rand(users.length-1)],
  ].join(",")
end