Class: RailsParallel::Rake

Inherits:
Object
  • Object
show all
Includes:
Singleton
Defined in:
lib/rails_parallel/rake.rb

Constant Summary collapse

SCHEMA_DIR = 
'tmp/rails_parallel/schema'

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.launch ⇒ Object 



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# File 'lib/rails_parallel/rake.rb', line 12

def self.launch
  instance.launch
end

.run(name, ruby_opts, files) ⇒ Object 



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# File 'lib/rails_parallel/rake.rb', line 16

def self.run(name, ruby_opts, files)
  instance.launch
  instance.run(name, ruby_opts, files)
end

Instance Method Details

#launch ⇒ Object 



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# File 'lib/rails_parallel/rake.rb', line 21

def launch
  return if @pid
  at_exit { shutdown }

  create_test_db

  my_socket, c_socket = ObjectSocket.pair
  sock = c_socket.socket
  sock.fcntl(Fcntl::F_SETFD, sock.fcntl(Fcntl::F_GETFD, 0) & ~Fcntl::FD_CLOEXEC)

  @pid = fork do
    my_socket.close
    ENV['RAILS_PARALLEL_ROOT'] = Rails.root
    exec('rails_parallel_worker', sock.fileno.to_s)
    raise 'exec failed'
  end

  c_socket.close
  @socket = my_socket

  expect(:started)
end

#run(name, ruby_opts, files) ⇒ Object 



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# File 'lib/rails_parallel/rake.rb', line 44

def run(name, ruby_opts, files)
  options = parse_options(ruby_opts)
  schema  = schema_file

  expect(:ready)
  @socket << {
    :name    => name,
    :schema  => schema,
    :options => options,
    :files   => files.to_a
  }
  expect(:done)
end

#shutdown ⇒ Object 



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# File 'lib/rails_parallel/rake.rb', line 58

def shutdown
  if @pid
    @socket << :shutdown
    Process.waitpid(@pid)
    @pid = nil
  end
end