Class: PryRemoteReloaded::Server

Inherits:
Object
  • Object
show all
Defined in:
lib/pry-remote-reloaded.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(object, host = DefaultHost, port = DefaultPort, options = {}) ⇒ Server

Returns a new instance of Server.



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# File 'lib/pry-remote-reloaded.rb', line 147

def initialize(object, host = DefaultHost, port = DefaultPort, options = {})
  @host    = host
  @port    = port

  @object  = object
  @options = options

  @client = PryRemoteReloaded::Client.new
  DRb.start_service uri, @client
rescue Errno::EADDRINUSE => e
  puts "[pry-remote] Port already in use: #{e.message}"
end

Instance Attribute Details

#client ⇒ PryServer::Client (readonly)

Returns Client connecting to the pry-remote server.

Returns:

  • (PryServer::Client) —

    Client connecting to the pry-remote server



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# File 'lib/pry-remote-reloaded.rb', line 250

def client
  @client
end

#host ⇒ String (readonly)

Returns Host of the server.

Returns:

  • (String) —

    Host of the server



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# File 'lib/pry-remote-reloaded.rb', line 253

def host
  @host
end

#object ⇒ Object (readonly)

Returns Object to enter into.

Returns:

  • Object to enter into



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# File 'lib/pry-remote-reloaded.rb', line 247

def object
  @object
end

#port ⇒ Integer (readonly)

Returns Port of the server.

Returns:

  • (Integer) —

    Port of the server



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# File 'lib/pry-remote-reloaded.rb', line 256

def port
  @port
end

Class Method Details

.run(object, host = DefaultHost, port = DefaultPort, options = {}) ⇒ Object 



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# File 'lib/pry-remote-reloaded.rb', line 143

def self.run(object, host = DefaultHost, port = DefaultPort, options = {})
  new(object, host, port, options).run
end

Instance Method Details

#capture_output ⇒ Object

Captures $stdout and $stderr if so requested by the client.



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# File 'lib/pry-remote-reloaded.rb', line 203

def capture_output
  @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
end

#editor_proc ⇒ Object 



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# File 'lib/pry-remote-reloaded.rb', line 223

def editor_proc
  proc do |file, line|
    File.write(file, @client.editor.call(File.read(file), line))
  end
end

#run ⇒ Object

Actually runs pry-remote



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# File 'lib/pry-remote-reloaded.rb', line 230

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

  puts "[pry-remote] Client received, starting remote session"
  setup

  Pry.start(@object, @options.merge(:input => client.input_proxy,
                                    :output => client.output,
                                    :hooks => @hooks))
rescue => e
  puts "[pry-remote] Error: #{e.message}"
ensure
  teardown
end

#setup ⇒ Object

Code that has to be called for Pry-remote to work properly



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# File 'lib/pry-remote-reloaded.rb', line 161

def setup
  @hooks = Pry::Hooks.default

  @hooks.add_hook :before_eval, :pry_remote_capture do
    capture_output
  end

  @hooks.add_hook :after_eval, :pry_remote_uncapture do
    uncapture_output
  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 = PryRemoteReloaded::System, Pry.config.system

  Pry.config.editor, @old_editor = editor_proc, Pry.config.editor
end

#teardown ⇒ Object

Code that has to be called after setup to return to the initial state



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# File 'lib/pry-remote-reloaded.rb', line 184

def teardown
  # Reset config
  Pry.config.editor = @old_editor
  Pry.config.pager  = @old_pager
  Pry.config.system = @old_system

  puts "[pry-remote] Remote session terminated"

  begin
    @client.kill
  rescue DRb::DRbConnError, Errno::ECONNREFUSED
    puts "[pry-remote] Continuing to stop service"
  ensure
    puts "[pry-remote] Ensure stop service"
    DRb.stop_service
  end
end

#uncapture_output ⇒ Object

Resets $stdout and $stderr to their previous values.



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# File 'lib/pry-remote-reloaded.rb', line 218

def uncapture_output
  $stdout = @old_stdout
  $stderr = @old_stderr
end

#uri ⇒ String

Returns URI for DRb.

Returns:

  • (String) —

    URI for DRb



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# File 'lib/pry-remote-reloaded.rb', line 259

def uri
  "druby://#{host}:#{port}"
end