Rakefile

require 'rake/testtask'

begin
  require 'bundler/gem_tasks'
rescue Exception
end

FileList['tasks/**.rake'].each {|f| load f }

Rake::TestTask.new('test') do |t|
  t.libs << 'lib'
  t.libs << 'test'
  t.test_files = FileList['test/**/*_test.rb']
  t.verbose = true
end

task default: 'test'

namespace :docker do
  def root_dir
    @root_dir ||= File.expand_path("..", __FILE__)
  end

  task :build do
    container_name = "iruby_build"
    image_name = "mrkn/iruby"
    sh "docker", "run",
       "--name", container_name,
       "-v", "#{root_dir}:/tmp/iruby",
       "rubylang/ruby", "/bin/bash", "/tmp/iruby/docker/setup.sh"
    sh "docker", "commit", container_name, image_name
    sh "docker", "rm", container_name
  end

  task :test do
    root_dir = File.expand_path("..", __FILE__)
    sh "docker", "run", "-it", "--rm",
       "-v", "#{root_dir}:/tmp/iruby",
       "mrkn/iruby", "/bin/bash", "/tmp/iruby/docker/test.sh"
  end
end