Module: PryRemote::Server

Extended by:
Server
Included in:
Server
Defined in:
lib/pry-nav/pry_remote_ext.rb

Overview

Extraction of Object#remote_pry from github.com/Mon-Ouie/pry-remote/blob/master/lib/pry-remote.rb into separate ‘start` and `stop` methods so that a DRb session can last over multiple Pry.start calls.

Instance Method Summary collapse

Instance Method Details

#start(host, port) ⇒ Object 



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# File 'lib/pry-nav/pry_remote_ext.rb', line 13

def start(host, port)
  uri = "druby://#{host}:#{port}"

  @client = PryRemote::Client.new
  @started = true
  DRb.start_service uri, @client

  puts "[pry-remote] Waiting for client on #{uri}"
  @client.wait

  # If client passed stdout and stderr, redirect actual messages there.
  @old_stdout, $stdout =
    if @client.stdout
      [$stdout, @client.stdout]
    else
      [$stdout, $stdout]
    end

  @old_stderr, $stderr =
    if @client.stderr
      [$stderr, @client.stderr]
    else
      [$stderr, $stderr]
    end

  # Before Pry starts, save the pager config.
  # We want to disable this because the pager won't do anything useful in
  # this case (it will run on the server).
  Pry.config.pager, @old_pager = false, Pry.config.pager

  # As above, but for system config
  Pry.config.system, @old_system = PryRemote::System, Pry.config.system

  @client
end

#stop ⇒ Object 



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# File 'lib/pry-nav/pry_remote_ext.rb', line 49

def stop
  return unless @started

  # Reset output streams
  $stdout = @old_stdout
  $stderr = @old_stderr

  # Reset config
  Pry.config.pager = @old_pager

  # Reset system
  Pry.config.system = @old_system

  begin
    @client.kill
  rescue DRb::DRbConnError
    # Ignore connection errors. The CLI client may have killed itself.
  ensure
    DRb.stop_service
  end

  @started = false
  puts "[pry-remote] Remote sesion terminated"
end