gistfile1.txt

#!/usr/bin/env ruby
require 'json'
require 'faker'

input_filename = ARGV[0]
output_filename = ARGV[1]
desired_size = (ARGV[2].to_f) * 1048576

ohai_object = JSON.parse(File.read(input_filename))

def add_package(ohai_object)
  name = "#{Faker::Hacker.adjective}-#{Faker::Hacker.verb}-#{Faker::Hacker.noun}"
  puts "adding package #{name}".gsub(/\s+/, "")
  ohai_object['packages'][name] = {
    'version' => "#{Faker::Number.within(1..20)}.#{Faker::Number.within(1..10)}-#{Faker::Number.within(1..20)}ubuntu1".gsub(/\s+/, ""),
    'arch' => "amd64"
  }
  return ohai_object
end

def add_user(ohai_object)
  name = "#{Faker::Name.first_name}_#{Faker::Name.last_name}"
  puts "adding user #{name}"
  id = get_new_id(ohai_object)
  ohai_object['etc']['passwd'][name] = {
    'dir' => "/home/#{name}",
    'gid' => id,
    'uid' => id,
    'shell' => "/bin/cool_shell",
    'gecos' => ""
  }
  return ohai_object
end

def get_new_id(ohai_object,test_id=1000)
  while true
    ohai_object['etc']['passwd'].each do |key, value|
      if test_id == value['uid']
        test_id = test_id + 1
        next
      end
    end
    break
  end
  return test_id
end

while JSON.generate(ohai_object).length < desired_size
  cointoss = Faker::Number.within(1..2)
  puts JSON.generate(ohai_object).length
  if cointoss == 1
    ohai_object = add_user(ohai_object)
  else
    ohai_object = add_package(ohai_object)
  end
end

File.open(output_filename, 'w') { |file| file.write(JSON.generate(ohai_object)) }

exit 0