added archiver typing

ts/typings/archiver/archiver.d.ts

@@ -0,0 +1,42 @@
+// Type definitions for archiver v0.15.0
+// Project: https://github.com/archiverjs/node-archiver
+// Definitions by: Esri <https://github.com/archiverjs/node-archiver>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+/* =================== USAGE ===================
+
+    import Archiver = require('archiver);
+    var archiver = Archiver.create('zip');
+    archiver.pipe(FS.createWriteStream('xxx'));
+    archiver.append(FS.createReadStream('xxx'));
+    archiver.finalize();
+
+ =============================================== */
+
+/// <reference path="../node/node.d.ts" />
+declare module "archiver" {
+    import * as FS from 'fs';
+    import * as STREAM from 'stream';
+    
+    interface nameInterface {
+        name?: string;
+    }
+        
+    interface Archiver extends STREAM.Transform {
+        pipe(writeStream: FS.WriteStream): void;
+        append(readStream: FS.ReadStream, name: nameInterface): void;
+        finalize(): void;
+    }
+    
+    interface Options {
+        
+    }
+    
+    function archiver(format: string, options?: Options): Archiver;
+    
+    namespace archiver {
+        function create(format: string, options?: Options): Archiver;
+    }
+    
+    export = archiver;
+}