RubyMotion Papertrail Logger

app_delegate.rb

Log = Motion::Log

class AppDelegate

  def application(application, didFinishLaunchingWithOptions:launchOptions)
    .....
    Log.addLogger(papertrail_logger)
    Log.level = NSBundle.mainBundle.infoDictionary['LOG_LEVEL'].to_sym
    ....

  end
  
  def papertrail_logger
    PapertrailLogger.alloc.init.tap do |logger|
      logger.host        = ENV['PAPERTRAIL_HOST']
      logger.port        = ENV['PAPERTRAIL_PORT']
      logger.app_name    = App.name
      logger.app_version = NSBundle.mainBundle.objectForInfoDictionaryKey(KCFBundleVersionKey)
    end
  end
end

Gemfile

source :rubygems
gem "rake"
gem 'motion-logger' #cocoalumberjack wrapper

log_message.m

##### this file belongs in vendor/umberjack_patch/log_message.m


#import "../Pods/CocoaLumberjack/Lumberjack/DDLog.h"

@interface DDLogMessage (InstVar)

- (NSString*) logMsg;
- (NSNumber *) logLevel;

@end

@implementation DDLogMessage (InstVar)

- (NSString *)logMsg {
    return logMsg;
}

-(NSNumber *) logLevel {
    return [NSNumber numberWithInt:logLevel];

}
@end

papertrail_logger.rb

class PapertrailLogger < DDAbstractLogger
  attr_accessor :host, :port, :app_name, :app_version

  def logMessage(message)
    message_string = message.logMsg

    formatted_message = format_message(message_string)

    send_message(formatted_message)
  end

  def send_message(message)
    udp_socket.sendData(message.to_data, toHost: host, port: port, withTimeout: -1, tag: 1)
  end

  def udp_socket
    GCDAsyncUdpSocket.alloc.initWithDelegate(nil, delegateQueue: Dispatch::Queue.main)
  end

  def format_message(message)
    "<22>#{time} #{app_name} #{app_version}: #{message}"
  end

  def time
    Time.now.strftime("%b %e %H:%M:%S")
  end
end

Rakefile

# -*- coding: utf-8 -*-
$:.unshift("/Library/RubyMotion/lib")
require 'motion/project'

require 'bundler'
Bundler.require

Motion::Project::App.setup do |app|
  app.pods do
    pod 'CocoaLumberjack'
    pod 'CocoaAsyncSocket' 
  end
  
  app.vendor_project 'vendor/lumberjack_patch', :static
end