Crashlytics CLS_LOG() in Swift

CrashlyticsSwift.swift

//
// Created by Dima Vartanian on 10/29/15.
// https://gist.github.com/DimaVartanian/a8aa73ba814a61f749c0
// Updated by me

import Foundation
import Crashlytics

/// This method gives us pretty much the same functionality as the CLS_LOG macro, but written as a Swift function, the only differences are that we have to use array syntax for the argument list and that we don't get see if the method being called is a class method or an instance method. We also have to define the DEBUG compiler flag with -D DEBUG.
///
/// Usage:
///
/// CLS.log("message!")
///
/// CLS.log("message with parameter 1: %@ and 2: %@", ["First", "Second"])
///
/// - Parameters:
///   - format: String which should be printed to the console. Default: Empty string
///   - args: Arguments as array used in format parameter. Default: Empty array
///   - file: Path of the called file. Default: #file
///   - function: Function name. Default: #function
///   - line: Line number. Default: #line
func CLS_LOG_SWIFT(format: String = "", _ args: [CVarArg] = [], file: String = #file, function: String = #function, line: Int = #line)
{
    guard let path = file.addingPercentEncoding(withAllowedCharacters: .urlPathAllowed) else {
	 return
    }
    guard let filename = URL(string: path)?.lastPathComponent.components(separatedBy: ".").first else {
	return
    }

    #if DEBUG
        CLSNSLogv("\(String(describing: filename)).\(function) line \(line) $ \(format)", getVaList(args))
    #else
        CLSLogv("\(filename).\(function) line \(line) $ \(format)", getVaList(args))
    #endif
}