Class: DaggerRuby::ProgressRunner

Inherits:
Object
  • Object
show all
Defined in:
lib/dagger_ruby/progress_runner.rb

Constant Summary collapse

DAGGER_EXEC_HEADING = 
/\A(?:\e\[[0-9;]*m)*▼ withExec\b/
INTERRUPT_TIMEOUT = 
1
TERMINATION_TIMEOUT = 
1

Instance Method Summary collapse

Constructor Details

#initialize(out: $stderr, result_out: $stdout, environment: ENV) ⇒ ProgressRunner

Returns a new instance of ProgressRunner.



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# File 'lib/dagger_ruby/progress_runner.rb', line 11

def initialize(out: $stderr, result_out: $stdout, environment: ENV)
  @out = out
  @result_out = result_out
  @environment = environment
  @started = false
  @started_mutex = Mutex.new
end

Instance Method Details

#run(command, environment: {}) ⇒ Object 



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# File 'lib/dagger_ruby/progress_runner.rb', line 19

def run(command, environment: {})
  reset_progress_state!
  Dir.mktmpdir("drp-", "/tmp") do |directory|
    server = UNIXServer.new(::File.join(directory, "progress.sock"))
    listener = listen(server)
    primary_output, primary_writer = IO.pipe
    primary_reader = relay_primary_output(primary_output)
    dagger_output, dagger_writer = IO.pipe
    output_reader = relay_dagger_output(dagger_output)
    pid = Process.spawn(
      environment.merge(Progress::SOCKET_ENV => server.path),
      *command,
      in: ::File::NULL,
      out: primary_writer,
      err: dagger_writer,
      pgroup: true,
    )
    primary_writer.close
    dagger_writer.close
    _, status = Process.wait2(pid)
    clean_process_group(pid)
    server.close
    listener.join
    primary_reader.join
    output_reader.join
    exit_status(status)
  rescue Interrupt
    terminate(pid)
    @out.puts "\nBuild canceled."
    @out.flush
    130
  ensure
    close_io(primary_output)
    close_io(primary_writer)
    close_io(dagger_output)
    close_io(dagger_writer)
    close_io(server)
    stop_thread(listener)
    stop_thread(primary_reader)
    stop_thread(output_reader)
  end
end