50 lines
1.3 KiB
Swift
50 lines
1.3 KiB
Swift
//
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// Log.swift
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// App
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//
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// Created by Christoph on 05.05.20.
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//
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import Foundation
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private let df: DateFormatter = {
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let df = DateFormatter()
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df.dateStyle = .short
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df.timeStyle = .short
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return df
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}()
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func log(_ message: String, file: String = #file, line: Int = #line) {
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let date = df.string(from: Date())
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let m = "[\(date)][\(file.components(separatedBy: "/").last ?? file):\(line)] \(message)"
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print(m)
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Log.write(m + "\n")
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}
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enum Log {
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static func set(logFile: String) throws {
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let url = URL(fileURLWithPath: logFile)
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let date = df.string(from: Date())
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if !FileManager.default.fileExists(atPath: logFile) {
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try "[\(date)] New log created.\n".write(to: url, atomically: false, encoding: .utf8)
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}
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guard let f = FileHandle(forWritingAtPath: logFile) else {
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try "[\(date)] Failed to start log.\n".write(to: url, atomically: false, encoding: .utf8)
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return
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}
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f.seekToEndOfFile()
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f.write("[\(date)] Logging started.\n".data(using: .utf8)!)
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file = f
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}
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static func write(_ message: String) {
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guard let f = file else {
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return
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}
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f.write(message.data(using: .utf8)!)
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}
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private static var file: FileHandle?
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}
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