[v0.4.0] Feature/file logger (#4)

* Installed missing packages.

* Added externals libs in webpack config.

* WriteMessageHandler type changed to list.

* Created file message handler.

* Builded code.

* Upated typescript configuration.

* Updated webpack configurations.

* Installed tslib and updated build scripts.

* Reexported ConsoleMessageHandler.

* Exported ConsoleMessageHandler in main module. Removed handlers exports.

* All imports changed to `simplr-logger`.

* Updated imports.
Deprecated WriteMessageHandler from configuration and SetWriteMessageHandler method from configuration builder.

* Updated naming.
Updated server side check.

* Builded code.

* Updated README.MD

* Updated readme.

* Updated readme.

* 0.4.0-alpha.1

* Rebuilded code.

* Added directories lib.

* 0.4.0-alpha.2

* Added handlers proxy file.

* 0.4.0-alpha.3

* Updated tsconfig.

* Created copy-handlers script.

* Updated scripts to copy handlers.

* Handlers renamed to logger-handlers and created proxy file.

* Rebuilded code.

* 0.4.0-alpha.4

* Updated files list.

* 0.4.0-alpha.5

* 0.4.0-alpha.6

* Updated keywords.

* Updated readme.

* Updated description.

* Updated copy-handlers description.

* Added AddWriteMessageHandler method to configuration builder.

* Added important comment.

* Updated description.

Author: GiedriusGrabauskas

@types/abstractions/message-handler-base.d.ts

@@ -1,4 +1,4 @@
-import { LogLevel } from "./log-level";
+import { LogLevel } from "simplr-logger";
 export declare abstract class MessageHandlerBase {
     abstract HandleMessage(level: LogLevel, isLevelEnabled: boolean, timestamp: number, messages: any[]): void;
 }

@types/builders/logger-builder.d.ts

@@ -1,5 +1,4 @@
-import { LoggerConfiguration } from "./logger-configuration-builder";
-import { LogLevel } from "../abstractions/log-level";
+import { LogLevel, LoggerConfiguration } from "simplr-logger";
 export declare class LoggerBuilder {
     private configuration;
     constructor(configuration?: LoggerConfiguration);

@types/builders/logger-configuration-builder.d.ts

@@ -1,7 +1,10 @@
-import { MessageHandlerBase } from "../abstractions/message-handler-base";
-import { LogLevel } from "../abstractions/log-level";
+import { LogLevel, MessageHandlerBase } from "simplr-logger";
 export interface LoggerConfiguration {
-    WriteMessageHandler: MessageHandlerBase;
+    /**
+     * @deprecated Use WriteMessageHandlers instead.
+     */
+    WriteMessageHandler?: MessageHandlerBase;
+    WriteMessageHandlers: MessageHandlerBase[];
     LogLevel: LogLevel;
     CustomLogLevels?: boolean;
     Prefix?: string;
@@ -17,8 +20,21 @@ export declare class LoggerConfigurationBuilder {
      * Set custom message handler.
      *
      * @param handler Log messages handler.
+     * @deprecated Use AddWriteMessageHandlers instead.
      */
     SetWriteMessageHandler(handler: MessageHandlerBase): this;
+    /**
+     * Add write message handler.
+     *
+     * @param handler Log messages handler.
+     */
+    AddWriteMessageHandler(handlers: MessageHandlerBase): this;
+    /**
+     * Add write message handlers.
+     *
+     * @param handlers Log messages handlers list.
+     */
+    AddWriteMessageHandlers(handlers: MessageHandlerBase[]): this;
     /**
      * Set log level.
      *

@types/handlers.d.ts

@@ -1,5 +1,4 @@
-import { LogLevel } from "../abstractions/log-level";
-import { MessageHandlerBase } from "../abstractions/message-handler-base";
+import { MessageHandlerBase, LogLevel } from "simplr-logger";
 export declare class ConsoleMessageHandler extends MessageHandlerBase {
     constructor(configuration?: Partial<ConsoleMessageHandler.Configuration>);
     private configuration;

@types/handlers/console-message-handler.d.ts

@@ -0,0 +1,12 @@
+import { MessageHandlerBase, LogLevel } from "simplr-logger";
+export declare class FileMessageHandler extends MessageHandlerBase {
+    private isServerSide;
+    constructor(filePathName: string, isServerSide?: boolean | undefined);
+    private filePathName;
+    private readonly handleMessageStackCount;
+    HandleMessage(level: LogLevel, isLevelEnabled: boolean, timestamp: number, messages: any[]): void;
+    private writeStream;
+    private getWriteStream();
+    private readonly EOL;
+    private ensureDirectory();
+}

@types/handlers/file-message-handler.d.ts

@@ -2,5 +2,5 @@ export { LoggerBuilder } from "./builders/logger-builder";
 export { LoggerConfigurationBuilder, LoggerConfiguration } from "./builders/logger-configuration-builder";
 export { LogLevel } from "./abstractions/log-level";
 export { MessageHandlerBase } from "./abstractions/message-handler-base";
-import * as Handlers from "./handlers";
-export { Handlers };
+export { ConsoleMessageHandler } from "./handlers/console-message-handler";
+export { Helpers as LoggerHelpers } from "./utils/helpers";

@types/index.d.ts

@@ -0,0 +1,2 @@
+export { ConsoleMessageHandler } from "simplr-logger";
+export { FileMessageHandler } from "./handlers/file-message-handler";

@types/logger-handlers.d.ts

@@ -1,4 +1,4 @@
-import { LogLevel } from "../abstractions/log-level";
+import { LogLevel } from "simplr-logger";
 export declare class HelpersBuilder {
     GetLogLevelShortString(level: LogLevel): string;
     GetLogLevelString(level: LogLevel): string;

@types/utils/helpers.d.ts

@@ -1,6 +1,6 @@
 # Simplr Logger
 
-Simple JavaScript logger written in [TypeScript](http://typescriptlang.org).
+Simple JavaScript logger written in [TypeScript](http://typescriptlang.org) that can be used in browser or node application.
 
 The package is most useful when used with [TypeScript](http://typescriptlang.org).
 
@@ -24,9 +24,11 @@ const logger = new LoggerBuilder();
 
 ```ts
 import { LoggerBuilder, LoggerConfigurationBuilder, LogLevel } from "simplr-logger";
+import { FileMessageHandler, ConsoleMessageHandler } from "simplr-logger/handlers";
 
 const config = new LoggerConfigurationBuilder()
     .SetLogLevel(LogLevel.Trace)
+    .AddWriteMessageHandlers([new ConsoleMessageHandler(), new FileMessageHandler("./logs.txt")])
     .Build();
 
 const logger = new LoggerBuilder(config);
@@ -35,11 +37,11 @@ const logger = new LoggerBuilder(config);
 #### With simple object
 
 ```ts
-import { LoggerBuilder, LoggerConfigurationBuilder, LogLevel, Handlers } from "simplr-logger";
+import { LoggerBuilder, LoggerConfigurationBuilder, LogLevel, ConsoleMessageHandler } from "simplr-logger";
 
 const logger = new LoggerBuilder({
     LogLevel: LogLevel.Trace,
-    WriteMessageHandler: new Handlers.ConsoleMessageHandler()
+    WriteMessageHandlers: [new ConsoleMessageHandler()]
 });
 ```