Log pry command?

[huguesbr]

Not an issue but a question/request?

Is it possible to hook into pry to log any command sent and the (string) result of a command?

Thank you

[huguesbr]

Answering my own question, I guess more related to pry-rails but

class LoggingReadline
  delegate :completion_proc, :completion_proc=, to: Readline

  def readline(prompt)
    Readline.readline(prompt).tap do |user_input|
      logger.info(user_input)
    end
  end

  private

  def logger
    @logger ||= Logger.new('log/console.log')
  end
end

Pry.config.input = LoggingReadline.new

source: https://www.hardscrabble.net/2015/how-to-log-all-input-in-your-pry-rails-console/

I've wrote a little class to do handle this:

class PryLogger
  class LoggingReadline
    attr_accessor :logger
    delegate :completion_proc, :completion_proc=, to: Readline

    def initialize(logger:)
      self.logger = logger
    end

    def readline(prompt)
      Readline.readline(prompt).tap do |user_input|
        self.logger.info("console input: #{user_input}")
      end
    end
  end

  class LoggedIO
    attr_accessor :io, :logger

    def initialize(io, logger:)
      self.io = io
      self.logger = logger
    end

    def method_missing(method_name, *args)
      if method_name == :print
        self.logger.info("console output: #{args.first}")
      end
      io.send(method_name, *args)
    end
  end

  def self.configure(pry_config, input_logger: nil, output_logger: nil)
    pry_config.input = LoggingReadline.new(logger: input_logger) if input_logger
    pry_config.output = LoggedIO.new($stdout, logger: output_logger) if output_logger
  end
end

usage:

# config/initializers/pry.rb

Pry.configure do |config|
  PryLogger.configure(config, input_logger: Rails.logger, output_logger: Rails.logger)
end

Hope it helps other