Simple logger for Swift

LogManager.swift

//
//  LogManager.swift
//
//  Created by Rutger Bresjer on 30/11/2016.
//  Copyright © 2016 Woost. All rights reserved.
//

import Foundation
import RxSwift

func log(_ message: String, file: String = #file, line: Int = #line, function: String = #function) {
  
  let fileName = file.components(separatedBy: "/").last ?? file
  let formattedMessage = "[\(fileName):\(line):\(function)] \(message)"
  
  #if DEBUG
    print(formattedMessage)
  #endif
  
  LogManager.shared.log(formattedMessage)
}

class LogManager {
  static let shared = LogManager()
  private init() {}
  
  public let messages = Variable("")
  
  fileprivate func log(_ message: String) {
    messages.value.append(message + "\n")
  }
  
  func clearLog() {
    messages.value = ""
  }
}