0001    //
0002    //  FileDestination.swift
0003    //  SwiftyBeaver
0004    //
0005    //  Created by Sebastian Kreutzberger on 05.12.15.
0006    //  Copyright © 2015 Sebastian Kreutzberger
0007    //  Some rights reserved: http://opensource.org/licenses/MIT
0008    //
0009    
0010    import Foundation
0011    
0012    public class FileDestination: BaseDestination {
0013        
0014        public var logFileURL
FileDestination.swift:22
            logFileURL = url.URLByAppendingPathComponent("swiftybeaver.log", isDirectory: false)
FileDestination.swift:24
            logFileURL = NSURL()
FileDestination.swift:45
            saveToFile(str, url: logFileURL)
: NSURL
0015    
0016        override public var defaultHashValue: Int {return 2}
0017        let fileManager
FileDestination.swift:21
        if let url = fileManager.URLsForDirectory(.DocumentDirectory, inDomains: .UserDomainMask).first {
FileDestination.swift:61
            if fileManager.fileExistsAtPath(url.path!) == false {
 = NSFileManager.defaultManager()
0018        var fileHandle
FileDestination.swift:52
        if let fileHandle = fileHandle {
FileDestination.swift:67
                if fileHandle == nil {
FileDestination.swift:69
                    fileHandle = try NSFileHandle(forWritingToURL: url)
FileDestination.swift:71
                if let fileHandle = fileHandle {
: NSFileHandle? = nil
0019        
0020        public override init() {
0021            if let url = fileManager.URLsForDirectory(.DocumentDirectory, inDomains: .UserDomainMask).first {
0022                logFileURL = url.URLByAppendingPathComponent("swiftybeaver.log", isDirectory: false)
0023            } else {
0024                logFileURL = NSURL()
0025            }
0026            super.init()
0027            
0028            // bash font color, first value is intensity, second is color
0029            // see http://bit.ly/1Otu3Zr to learn more
0030            blue = "0;34m"  // replace first 0 with 1 to make it bold
0031            green = "0;32m"
0032            yellow = "0;33m"
0033            red = "0;31m"
0034            magenta = "0;35m"
0035            cyan = "0;36m"
0036            silver = "0;37m"
0037            reset = "\u{001b}[0m"
0038        }
0039        
0040        // append to file. uses full base class functionality
0041        override public func send(level: SwiftyBeaver.Level, msg: String, thread: String, path: String, function: String, line: Int) -> String? {
0042            let formattedString = super.send(level, msg: msg, thread: thread, path: path, function: function, line: line)
0043            
0044            if let str = formattedString {
0045                saveToFile(str, url: logFileURL)
0046            }
0047            return formattedString
0048        }
0049        
0050        deinit {
0051            // close file handle if set
0052            if let fileHandle = fileHandle {
0053                fileHandle.closeFile()
0054            }
0055        }
0056    
0057        /// appends a string as line to a file.
0058        /// returns boolean about success
0059        func saveToFile
FileDestination.swift:45
            saveToFile(str, url: logFileURL)
(str: String, url: NSURL) -> Bool {
0060            do {
0061                if fileManager.fileExistsAtPath(url.path!) == false {
0062                    // create file if not existing
0063                    let line = str + "\n"
0064                    try line.writeToURL(url, atomically: true, encoding: NSUTF8StringEncoding)
0065                } else {
0066                    // append to end of file
0067                    if fileHandle == nil {
0068                        // initial setting of file handle
0069                        fileHandle = try NSFileHandle(forWritingToURL: url)
0070                    }
0071                    if let fileHandle = fileHandle {
0072                        fileHandle.seekToEndOfFile()
0073                        let line = str + "\n"
0074                        let data = line.dataUsingEncoding(NSUTF8StringEncoding)!
0075                        fileHandle.writeData(data)
0076                    }
0077                }
0078                return true
0079            } catch let error {
0080                print("SwiftyBeaver could not write to file \(url). \(error)")
0081                return false
0082            }
0083        }
0084    }
0085    
0086