CocoaLumberjack in Swift, how to print line number and filne name

Question

I'm new to CocoaLumberjack and I get it to work on Swift following this. If I try to print logs doing:

DDLogDebug("Debug")
DDLogInfo("Info")
DDLogWarn("Warning")
DDLogVerbose("Verbose")
DDLogError("Error")

Everything works fine and I get all the levels printed as my defaultDebugLevel is DDLogLevel.Verbose.

But I can't find/find out how to print the line or the filename with the log. Any idea?

Thanks a lot!!

Answer 1

After some more research I found that you have to create a log formatter, this log formatter is a subclass of DDDispatchQueueLogFormatter and you have to override a function that receives a DDLogMessage and returns a String, for example:

import Foundation
import CocoaLumberjack.DDDispatchQueueLogFormatter

class LogFormatter: DDDispatchQueueLogFormatter {
  let dateFormatter: NSDateFormatter

  override init() {
    dateFormatter = NSDateFormatter()
    dateFormatter.formatterBehavior = .Behavior10_4
    dateFormatter.dateFormat = "HH:mm"

    super.init()
  }

  override func formatLogMessage(logMessage: DDLogMessage!) -> String {
    let dateAndTime = dateFormatter.stringFromDate(logMessage.timestamp)
    return "\(dateAndTime) [\(logMessage.fileName):\(logMessage.line)]: \(logMessage.message)"
  }
}

Then you just have to add your formatter like this in your AppDelegate or wherever you are setting CocaLumberJack:

DDTTYLogger.sharedInstance().logFormatter = LogFormatter()

Hope it helps someone!