discourse/config/boot.rb

if ENV['DISCOURSE_DUMP_HEAP'] == "1"
  require 'objspace'
  ObjectSpace.trace_object_allocations_start
end

require 'rubygems'

# Set up gems listed in the Gemfile.
ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../../Gemfile', __FILE__)

require 'bundler/setup' if File.exists?(ENV['BUNDLE_GEMFILE'])

if ENV['RAILS_ENV'] != 'production' && ENV['RAILS_ENV'] != 'profile'
  begin
    require 'bootsnap'
  rescue LoadError
    # not a strong requirement
  end

  if defined? Bootsnap
    Bootsnap.setup(
      cache_dir: 'tmp/cache',     # Path to your cache
      load_path_cache: true,      # Should we optimize the LOAD_PATH with a cache?
      autoload_paths_cache: true, # Should we optimize ActiveSupport autoloads with cache?
      disable_trace: false,       # Sets `RubyVM::InstructionSequence.compile_option = { trace_instruction: false }`
      compile_cache_iseq: true,   # Should compile Ruby code into ISeq cache?
      compile_cache_yaml: false   # Skip YAML cache for now, cause we were seeing issues with it
    )
  end
end

# Parallel spec system
if ENV['RAILS_ENV'] == "test" && ENV['TEST_ENV_NUMBER']
  n = ENV['TEST_ENV_NUMBER'].to_i
  port = 10000 + n

  puts "Setting up parallel test mode - starting Redis #{n} on port #{port}"

  `rm -rf tmp/test_data_#{n} && mkdir -p tmp/test_data_#{n}/redis`
  pid = Process.spawn("redis-server --dir tmp/test_data_#{n}/redis --port #{port}", out: "/dev/null")

  ENV["DISCOURSE_REDIS_PORT"] = port.to_s
  ENV["RAILS_DB"] = "discourse_test_#{ENV['TEST_ENV_NUMBER']}"

  at_exit { puts "Terminating redis #{n}"; Process.kill("SIGTERM", pid); Process.wait }
end