renuo/ngx-renuo-upload

#!/usr/bin/env ruby

require 'open3'

stderr_str = nil
thread = Thread.new do
  stdout_str, stderr_str, status = Open3.capture3('npm start')
  puts '--'
  $stderr.puts 'Unable to start the server!'
  puts status
  puts '--'
  puts stdout_str
  puts '--'
  abort(stderr_str)
end

# try for 15 seconds
(1..30).each do
  sleep(0.5)
  abort(stderr_str) unless thread.alive?
end
thread.kill