Utility class to use a global XCGLogger from anywhere in the project.

LogUtils.swift

//
//  Created by Khanh Le Do on 12/3/16.
//  Copyright © 2016 estasy. All rights reserved.
//

import Foundation
import UIKit
import XCGLogger

public class LogUtils {
    
    private static let cacheDirectory: NSURL = {
        let urls = NSFileManager.defaultManager().URLsForDirectory(.CachesDirectory, inDomains: .UserDomainMask)
        return urls[urls.endIndex - 1]
    }()
    
    public static let logger: XCGLogger = {
        // Setup XCGLogger
        let aLogger = XCGLogger.defaultInstance()
        aLogger.xcodeColorsEnabled = true // Or set the XcodeColors environment variable in your scheme to YES
        aLogger.xcodeColors = [
            .Verbose: .darkGrey,
            .Debug: .blue,
            .Info: .darkGreen,
            .Warning: .orange,
            .Error: XCGLogger.XcodeColor(fg: UIColor.redColor(), bg: UIColor.whiteColor()), // Optionally use a UIColor
            .Severe: XCGLogger.XcodeColor(fg: (255, 255, 255), bg: (255, 0, 0)) // Optionally use RGB values directly
        ]
        
        // == Configuration
        // Turn verbose on only for local testing purpose
        let logLevel = XCGLogger.LogLevel.Debug
        
        #if USE_NSLOG // Set via Build Settings, under Other Swift Flags
            aLogger.setup(logLevel, showThreadName: true, showLogLevel: true, showFileNames: true, showLineNumbers: true)
        #else
            let logPath: NSURL = LogUtils.cacheDirectory.URLByAppendingPathComponent("out.log")
            aLogger.setup(.Debug, showThreadName: true, showLogLevel: true, showFileNames: true, showLineNumbers: true, writeToFile: logPath)
        #endif
        
        return aLogger
    }()
}