3.0.5

Fix sample code in README.md

See merge request pushrocks/gulp-function!2

.gitignore

@@ -1,10 +1,22 @@
-node_modules/
-.settings/
-.idea/
+.nogit/
+
+# artifacts
 coverage/
+public/
+pages/
 
-ts/*.js
-ts/*.js.map
-ts/typings/
-test/result/
+# installs
+node_modules/
 
+# caches
+.yarn/
+.cache/
+.rpt2_cache
+
+# builds
+dist/
+dist_web/
+dist_serve/
+dist_ts_web/
+
+# custom

.gitlab-ci.yml

@@ -0,0 +1,126 @@
+# gitzone ci_default
+image: registry.gitlab.com/hosttoday/ht-docker-node:npmci
+
+cache:
+  paths:
+    - .npmci_cache/
+  key: '$CI_BUILD_STAGE'
+
+stages:
+  - security
+  - test
+  - release
+  - metadata
+
+# ====================
+# security stage
+# ====================
+mirror:
+  stage: security
+  script:
+    - npmci git mirror
+  tags:
+    - lossless
+    - docker
+    - notpriv
+
+snyk:
+  image: registry.gitlab.com/hosttoday/ht-docker-node:snyk
+  stage: security
+  script:
+    - npmci npm prepare
+    - npmci command npm install --ignore-scripts
+    - npmci command snyk test
+  tags:
+    - lossless
+    - docker
+    - notpriv
+
+# ====================
+# test stage
+# ====================
+
+testStable:
+  stage: test
+  script:
+    - npmci npm prepare
+    - npmci node install stable
+    - npmci npm install
+    - npmci npm test
+  coverage: /\d+.?\d+?\%\s*coverage/
+  tags:
+    - lossless
+    - docker
+    - priv
+
+testBuild:
+  stage: test
+  script:
+    - npmci npm prepare
+    - npmci node install stable
+    - npmci npm install
+    - npmci command npm run build
+  coverage: /\d+.?\d+?\%\s*coverage/
+  tags:
+    - lossless
+    - docker
+    - notpriv
+
+release:
+  stage: release
+  script:
+    - npmci node install stable
+    - npmci npm publish
+  only:
+    - tags
+  tags:
+    - lossless
+    - docker
+    - notpriv
+
+# ====================
+# metadata stage
+# ====================
+codequality:
+  stage: metadata
+  allow_failure: true
+  script:
+    - npmci command npm install -g tslint typescript
+    - npmci npm prepare
+    - npmci npm install
+    - npmci command "tslint -c tslint.json ./ts/**/*.ts"
+  tags:
+    - lossless
+    - docker
+    - priv
+
+trigger:
+  stage: metadata
+  script:
+    - npmci trigger
+  only:
+    - tags
+  tags:
+    - lossless
+    - docker
+    - notpriv
+
+pages:
+  stage: metadata
+  script:
+    - npmci node install lts
+    - npmci command npm install -g @gitzone/tsdoc
+    - npmci npm prepare
+    - npmci npm install
+    - npmci command tsdoc
+  tags:
+    - lossless
+    - docker
+    - notpriv
+  only:
+    - tags
+  artifacts:
+    expire_in: 1 week
+    paths:
+      - public
+  allow_failure: true

.npmignore

@@ -1,3 +1,5 @@
 ts/
 test/
+docs/
+coverage/
 node_modules/

.travis.yml

@@ -1,14 +0,0 @@
-language: node_js
-node_js:
-- 4.2.4
-deploy:
-  provider: npm
-  email: npm@lossless.digital
-  api_key:
-    secure: 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
-  on:
-    tags: true
-    repo: pushrocks/gulp-function
-notifications:
-  slack:
-    secure: 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

LICENSE.md

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2015 Push.Rocks
+Copyright (c) 2015 Lossless GmbH
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -1,39 +0,0 @@
-# gulp-function
-accepts call to execute in gulp pipeline.
-
-### Status
-[![Build Status](https://travis-ci.org/pushrocks/gulp-function.svg?branch=v0.0.2)](https://travis-ci.org/pushrocks/gulp-function)
-[![Dependency Status](https://david-dm.org/pushrocks/gulp-function.svg)](https://david-dm.org/pushrocks/gulp-function)
-[![devDependency Status](https://david-dm.org/pushrocks/gulp-function/dev-status.svg)](https://david-dm.org/pushrocks/gulp-function#info=devDependencies)
-[![bitHound Code](https://www.bithound.io/github/pushrocks/gulp-function/badges/code.svg)](https://www.bithound.io/github/pushrocks/gulp-function)
-[![Coverage Status](https://coveralls.io/repos/github/pushrocks/gulp-function/badge.svg?branch=master)](https://coveralls.io/github/pushrocks/gulp-function?branch=master)
-
-### Usage
-```javascript
-var gulp = require("gulp");
-var gulpFunction = require("gulp-function");
-var Q = require("q");
-
-var myFunction = function () {
-    var done = Q.defer();
-    console.log("Hello World!")
-    
-    // NOTE:
-    // you can use done.resolve as callback function
-    // of any async tasks within this function
-    done.resolve();
-    
-    return done.promise;
-}
-
-gulp.task('gulpTest',function() {
-    var stream = gulp.src('./mydir/*.something')
-        .pipe(gulpFunction(myFunction,'forEach')) //read the notes below
-        .pipe(gulp.dest("./build/"));
-    return stream; // by returning the stream gulp knows when our task has finished.
-});
-```
-
-> Note: The first argument of gulpFunction can also be an array of multiple functionnames.
-Each function can return a promise. the pipe stop will finish when every promise is fullfilled.  
-> Note: the second argument can be empty (defaults to 'forEach') or 'atEnd'

index.d.ts

@@ -1,6 +0,0 @@
-/// <reference path="ts/typings/main.d.ts" />
-declare var plugins: {
-    beautylog: any;
-    Q: any;
-    through: any;
-};

index.js

@@ -1,57 +0,0 @@
-#!/usr/bin/env node
-
-/// <reference path="typings/main.d.ts" />
-var plugins = {
-    beautylog: require("beautylog"),
-    Q: require("q"),
-    through: require("through2")
-};
-module.exports = function (functionsToExecuteArg, executionModeArg) {
-    if (executionModeArg === void 0) { executionModeArg = 'forEach'; }
-    //important vars
-    var executionMode = executionModeArg; //can be forEach or atEnd
-    var functionsToExecute = functionsToExecuteArg;
-    var promiseArray = [];
-    var runFunction = function (functionArg) {
-        var returnValue = functionArg();
-        if (typeof returnValue !== "undefined" && typeof returnValue.then !== "undefined") {
-            promiseArray.push(returnValue);
-        }
-    };
-    var checkAndRunFunction = function () {
-        if (typeof functionsToExecute === "function") {
-            runFunction(functionsToExecute);
-        }
-        else if (Array.isArray(functionsToExecute)) {
-            for (var anyFunction in functionsToExecute) {
-                runFunction(functionsToExecute[anyFunction]);
-            }
-        }
-        else {
-            plugins.beautylog.error('gulp-callfunction: something is strange with the given arguments');
-        }
-        return plugins.Q.all(promiseArray);
-    };
-    var forEach = function (file, enc, cb) {
-        if (executionMode === 'forEach') {
-            checkAndRunFunction().then(function () {
-                cb(null, file);
-            });
-        }
-        else {
-            cb(null, file);
-        }
-        //tell gulp that we are complete
-    };
-    var atEnd = function (cb) {
-        if (executionMode === "atEnd") {
-            checkAndRunFunction().then(function () {
-                cb();
-            });
-        }
-        else {
-            cb();
-        }
-    };
-    return plugins.through.obj(forEach, atEnd);
-};

npmextra.json

@@ -0,0 +1,19 @@
+{
+  "npmts": {
+    "mode": "default"
+  },
+  "npmci": {
+    "npmGlobalTools": [],
+    "npmAccessLevel": "public"
+  },
+  "gitzone": {
+    "module": {
+      "githost": "gitlab.com",
+      "gitscope": "pushrocks",
+      "gitrepo": "gulp-function",
+      "shortDescription": "accepts a function call as parameter to execute in gulp pipeline",
+      "npmPackagename": "@pushrocks/gulp-function",
+      "license": "MIT"
+    }
+  }
+}

npmts.json

@@ -1,4 +0,0 @@
-{
-  "mode":"default",
-  "coveralls":true
-}

package.json

@@ -1,36 +1,53 @@
 {
-  "name": "gulp-function",
-  "version": "1.1.1",
+  "name": "@pushrocks/gulp-function",
+  "private": false,
+  "version": "3.0.5",
   "description": "accepts a function call as parameter to execute in gulp pipeline",
-  "main": "index.js",
+  "main": "dist/index.js",
+  "typings": "dist/index.d.ts",
   "scripts": {
-    "test": "(npmts)",
-    "reinstall": "(rm -r node_modules && npm install)",
-    "release": "(git pull origin master && npm version patch && git push origin master && git checkout release && git merge master && git push origin release && git checkout master)",
-    "startdev": "(git checkout master && git pull origin master)"
+    "test": "(tstest test/)",
+    "build": "(tsbuild)"
   },
   "repository": {
     "type": "git",
-    "url": "https://github.com/pushrocks/gulp-function.git"
+    "url": "https://gitlab.com/pushrocks/gulp-function.git"
   },
   "keywords": [
     "gulpplugin",
     "gulp",
-    "function"
+    "function",
+    "pushrocks"
   ],
-  "author": "Smart Coordination GmbH <office@push.rocks> (https://push.rocks)",
+  "author": "Lossless GmbH <office@lossless.com> (https://lossless.com)",
   "license": "MIT",
   "bugs": {
-    "url": "https://github.com/pushrocks/gulp-function/issues"
+    "url": "https://gitlab.com/pushrocks/gulp-function/issues"
   },
-  "homepage": "https://github.com/pushrocks/gulp-function",
+  "homepage": "https://gitlab.com/pushrocks/gulp-function",
   "dependencies": {
-    "beautylog": "^2.1.1",
-    "q": "^1.4.1",
-    "through2": "^2.0.1"
+    "@pushrocks/smartpromise": "^3.0.6",
+    "@types/through2": "^2.0.32",
+    "through2": "^3.0.1"
   },
   "devDependencies": {
-    "gulp": "^3.9.1",
-    "npmts": "^2.2.3"
-  }
+    "@gitzone/tsbuild": "^2.1.17",
+    "@gitzone/tstest": "^1.0.28",
+    "@pushrocks/smartgulp": "^2.0.2",
+    "@pushrocks/tapbundle": "^3.2.0",
+    "gulp": "^4.0.2",
+    "tslint": "^5.20.1",
+    "tslint-config-prettier": "^1.18.0"
+  },
+  "files": [
+    "ts/**/*",
+    "ts_web/**/*",
+    "dist/**/*",
+    "dist_web/**/*",
+    "dist_ts_web/**/*",
+    "assets/**/*",
+    "cli.js",
+    "npmextra.json",
+    "readme.md"
+  ]
 }

readme.md

@@ -0,0 +1,64 @@
+# @pushrocks/gulp-function
+accepts a function call as parameter to execute in gulp pipeline
+
+## Availabililty and Links
+* [npmjs.org (npm package)](https://www.npmjs.com/package/@pushrocks/gulp-function)
+* [gitlab.com (source)](https://gitlab.com/pushrocks/gulp-function)
+* [github.com (source mirror)](https://github.com/pushrocks/gulp-function)
+* [docs (typedoc)](https://pushrocks.gitlab.io/gulp-function/)
+
+## Status for master
+[![build status](https://gitlab.com/pushrocks/gulp-function/badges/master/build.svg)](https://gitlab.com/pushrocks/gulp-function/commits/master)
+[![coverage report](https://gitlab.com/pushrocks/gulp-function/badges/master/coverage.svg)](https://gitlab.com/pushrocks/gulp-function/commits/master)
+[![npm downloads per month](https://img.shields.io/npm/dm/@pushrocks/gulp-function.svg)](https://www.npmjs.com/package/@pushrocks/gulp-function)
+[![Known Vulnerabilities](https://snyk.io/test/npm/@pushrocks/gulp-function/badge.svg)](https://snyk.io/test/npm/@pushrocks/gulp-function)
+[![TypeScript](https://img.shields.io/badge/TypeScript->=%203.x-blue.svg)](https://nodejs.org/dist/latest-v10.x/docs/api/)
+[![node](https://img.shields.io/badge/node->=%2010.x.x-blue.svg)](https://nodejs.org/dist/latest-v10.x/docs/api/)
+[![JavaScript Style Guide](https://img.shields.io/badge/code%20style-prettier-ff69b4.svg)](https://prettier.io/)
+
+## Usage
+
+Please use TypeScript for best in class intellisense.
+
+```typescript
+import gulp = require('gulp');
+import gulpFunction from 'gulp-function'; // default ES6 export
+// import {forFirst, forEach, atEnd} from 'gulp-function'
+
+let myAsyncFunction = async (file, enc) => {
+  // await some async stuff
+};
+
+gulp.task('gulpTest', function() {
+  let stream = gulp
+    .src('./mydir/*.something')
+    .pipe(gulpFunction(myAsyncFunction, 'forEach')) //read the notes below
+    // .pipe(forEach(myAsyncFunction)) // if imported as >> import { forEach } from 'gulp-function' <<
+    .pipe(gulp.dest('./build/'));
+  return stream; // by returning the stream gulp knows when our task has finished.
+});
+```
+
+### Notes
+
+- The first argument of gulpFunction can also be an **array of multiple functionnames**.
+  Each function can return a promise. The pipe stop will finish when every promise is fullfilled.
+  When providing an array of functions be careful with modifying the file object -> race condition
+- The second argument can be empty, it defaults to "forEach"
+- The following options are available:
+  - "forFirst" - executes when first chunk/vinylfile of the stream reaches the pipestop.
+    file is pushed further down the line when function's returned promise is fullfilled.
+  - "forEach" - executes like "forFirst" but with every chunk/vinylfile in the stream;
+  - "atEnd" - executes after all chunks have passed and are processed in full.
+    That means the stream's "finish" event fires **before "atLast" is executed**!!!
+
+## Contribution
+
+We are always happy for code contributions. If you are not the code contributing type that is ok. Still, maintaining Open Source repositories takes considerable time and thought. If you like the quality of what we do and our modules are useful to you we would appreciate a little monthly contribution: You can [contribute one time](https://lossless.link/contribute-onetime) or [contribute monthly](https://lossless.link/contribute). :)
+
+For further information read the linked docs at the top of this readme.
+
+> MIT licensed | **&copy;** [Lossless GmbH](https://lossless.gmbh)
+| By using this npm module you agree to our [privacy policy](https://lossless.gmbH/privacy)
+
+[![repo-footer](https://lossless.gitlab.io/publicrelations/repofooter.svg)](https://maintainedby.lossless.com)

test/test.d.ts

@@ -1,8 +0,0 @@
-/// <reference path="ts/typings/main.d.ts" />
-declare var gulp: any;
-declare var gulpFunction: any;
-declare var beautylog: any;
-declare var Q: any;
-declare var myFunction: () => any;
-declare var myFunction2: () => any;
-declare var myFunction3: () => any;

test/test.js

@@ -1,45 +0,0 @@
-#!/usr/bin/env node
-
-/// <reference path="typings/main.d.ts" />
-var gulp = require("gulp");
-var gulpFunction = require("../index.js");
-var beautylog = require("beautylog");
-var Q = require("q");
-var myFunction = function () {
-    var done = Q.defer();
-    beautylog.log("Function executed");
-    done.resolve();
-    return done.promise;
-};
-var myFunction2 = function () {
-    var done = Q.defer();
-    beautylog.ok("Function2 executed");
-    done.resolve();
-    return done.promise;
-};
-var myFunction3 = function () {
-    var done = Q.defer();
-    beautylog.success("Function3 executed");
-    done.resolve();
-    return done.promise;
-};
-describe("gulpFunction", function () {
-    it("should run through smoothly with " + "'forEach'".blue, function (done) {
-        gulp.src('./test/*.md')
-            .pipe(gulpFunction(myFunction, 'forEach'))
-            .pipe(gulp.dest("./test/result/"));
-        gulp.src('./test/*.md')
-            .pipe(gulpFunction([myFunction2, myFunction3], 'forEach'))
-            .pipe(gulp.dest("./test/result/"))
-            .pipe(gulpFunction(done, "atEnd"));
-    });
-    it("should run through smoothly with " + "'atEnd'".blue, function (done) {
-        gulp.src('./test/*.md')
-            .pipe(gulpFunction(myFunction, 'atEnd'))
-            .pipe(gulp.dest("./test/result/"));
-        gulp.src('./test/*.md')
-            .pipe(gulpFunction([myFunction2, myFunction3], 'atEnd'))
-            .pipe(gulp.dest("./test/result/"))
-            .pipe(gulpFunction(done, "atEnd"));
-    });
-});

test/test.ts

@@ -0,0 +1,35 @@
+import { expect, tap } from '@pushrocks/tapbundle';
+
+import * as smartgulp from '@pushrocks/smartgulp';
+let gulp = require('gulp');
+import * as gulpFunction from '../ts/index';
+
+import * as smartpromise from '@pushrocks/smartpromise';
+
+tap.test('should run through smoothly with ' + "'forEach'", async tools => {
+  let done = smartpromise.defer();
+  let counter = 0;
+  gulp.src('./test/testfiles/*.md').pipe(
+    gulpFunction.forEach(async () => {
+      counter++;
+      if (counter === 2) {
+        done.resolve();
+      }
+    })
+  );
+  await done.promise;
+});
+
+tap.test('should run through smoothly with ' + "'forEach'", async tools => {
+  let done = smartpromise.defer();
+  let counter = 0;
+  smartgulp.src(['./test/testfiles/*.md']).pipe(
+    gulpFunction.atEnd(async () => {
+      console.log('atEnd');
+      done.resolve();
+    })
+  );
+  await done.promise;
+});
+
+tap.start();

test/test01.md

@@ -1,2 +0,0 @@
-# Test.md
-This is a test file for the test.js gulp pipeline

test/test02.md

@@ -1,2 +0,0 @@
-# Test.md
-This is another test file for the test.js gulp pipeline

test/testfiles/test01.md

@@ -0,0 +1 @@
+# the 1st testfile

test/testfiles/test02.md

@@ -0,0 +1 @@
+# the second testfile

test/testfiles/test03.md

@@ -0,0 +1 @@
+# the third testfile

test/testfiles/test04.md

@@ -0,0 +1 @@
+# the fourth testfile

test/testfiles/test05.md

@@ -0,0 +1 @@
+# the fifth testfile

test/testfiles/test06.md

@@ -0,0 +1 @@
+# the sixth testfile

test/testfiles/test07.md

@@ -0,0 +1 @@
+# the seventh testfile

test/testfiles/test08.md

@@ -0,0 +1 @@
+# the eighth testfile

test/testfiles/test09.md

@@ -0,0 +1 @@
+# the nineth testfile

test/testfiles/test10.md

@@ -0,0 +1 @@
+# the tenth testfile

test/testfiles/test11.md

@@ -0,0 +1 @@
+# the eleventh testfile

test/testfiles/test12.md

@@ -0,0 +1 @@
+# the twelveth testfile

test/testfiles/test13.md

@@ -0,0 +1 @@
+# the second testfile

test/testfiles/test14.md

@@ -0,0 +1 @@
+# the second testfile

test/testfiles/test15.md

@@ -0,0 +1 @@
+# the second testfile

test/testfiles/test16.md

@@ -0,0 +1 @@
+# the second testfile

test/testfiles/test17.md

@@ -0,0 +1 @@
+# the second testfile

test/testfiles/test18.md

@@ -0,0 +1 @@
+# the 18th testfile

ts/00_commitinfo_data.ts

@@ -0,0 +1,8 @@
+/**
+ * autocreated commitinfo by @pushrocks/commitinfo
+ */
+export const commitinfo = {
+  name: '@pushrocks/gulp-function',
+  version: '3.0.5',
+  description: 'accepts a function call as parameter to execute in gulp pipeline'
+}

ts/index.ts

@@ -1,60 +1,87 @@
-/// <reference path="typings/main.d.ts" />
+import * as smartpromise from '@pushrocks/smartpromise';
+import * as through2 from 'through2';
+import { Transform } from 'stream';
 
-var plugins = {
-    beautylog: require("beautylog"),
-    Q: require("q"),
-    through: require("through2")
+export type TExecutionMode = 'forEach' | 'forFirst' | 'atEnd';
+
+export interface IPromiseFunction {
+  (file?, enc?): PromiseLike<any>;
 }
 
-
-
-
-module.exports = function (functionsToExecuteArg:any|any[],executionModeArg:string = 'forEach') {
-    //important vars
-    var executionMode = executionModeArg; //can be forEach or atEnd
-    var functionsToExecute = functionsToExecuteArg;
-    var promiseArray = [];
-    var runFunction = function(functionArg){
-        var returnValue = functionArg();
-        if (typeof returnValue !== "undefined" && typeof returnValue.then !== "undefined") {
+let defaultExport = (
+  functionsToExecuteArg: IPromiseFunction | IPromiseFunction[],
+  executionModeArg: TExecutionMode = 'forEach'
+): Transform => {
+  let promiseArray = [];
+  let runFunction = function(functionArg, file, enc) {
+    let returnValue = functionArg(file, enc);
+    if (typeof returnValue !== 'undefined' && typeof returnValue.then !== 'undefined') {
       promiseArray.push(returnValue);
     }
   };
 
-    var checkAndRunFunction = function () {
-        if (typeof functionsToExecute === "function" ) {
-            runFunction(functionsToExecute);
-        } else if (Array.isArray(functionsToExecute)) {
-            for (var anyFunction in functionsToExecute) {
-                runFunction(functionsToExecute[anyFunction]);
+  let checkAndRunFunction = function(file, enc) {
+    if (typeof functionsToExecuteArg === 'function') {
+      runFunction(functionsToExecuteArg, file, enc);
+    } else if (Array.isArray(functionsToExecuteArg)) {
+      for (let anyFunction in functionsToExecuteArg) {
+        runFunction(functionsToExecuteArg[anyFunction], file, enc);
       }
     } else {
-            plugins.beautylog.error('gulp-callfunction: something is strange with the given arguments');
+      throw new Error('gulp-callfunction: something is strange with the given arguments');
     }
-        return plugins.Q.all(promiseArray);
+    return Promise.all(promiseArray);
   };
 
-
-    var forEach = function (file, enc, cb) {
-        if (executionMode === 'forEach') {
-            checkAndRunFunction().then(function(){
+  let hasExecutedOnce = false;
+  let forEach = function(file, enc, cb) {
+    // the forEach function is called for every chunk
+    switch (executionModeArg) {
+      case 'forEach':
+        checkAndRunFunction(file, enc).then(function() {
+          cb(null, file);
+        });
+        break;
+      case 'forFirst':
+        if (hasExecutedOnce) {
+          checkAndRunFunction(file, enc).then(function() {
             cb(null, file);
           });
         } else {
           cb(null, file);
         }
-        //tell gulp that we are complete
-
+        hasExecutedOnce = true;
+        break;
+      case 'atEnd':
+        cb();
+        break;
+      default:
+        break;
+    }
   };
 
-    var atEnd = function(cb) {
-        if (executionMode === "atEnd") {
-            checkAndRunFunction().then(function(){
+  let atEnd = function(cb) {
+    if (executionModeArg === 'atEnd') {
+      checkAndRunFunction(null, null).then(function() {
         cb();
       });
     } else {
       cb();
     }
   };
-    return plugins.through.obj(forEach,atEnd);
+  return through2.obj(forEach, atEnd);
 };
+
+export let forEach = (funcArg: IPromiseFunction) => {
+  return defaultExport(funcArg, 'forEach');
+};
+
+export let forFirst = (funcArg: IPromiseFunction) => {
+  return defaultExport(funcArg, 'forFirst');
+};
+
+export let atEnd = (funcArg: IPromiseFunction) => {
+  return defaultExport(funcArg, 'atEnd');
+};
+
+export default defaultExport;

ts/test.ts

@@ -1,50 +0,0 @@
-/// <reference path="typings/main.d.ts" />
-var gulp = require("gulp");
-var gulpFunction = require("../index.js");
-var beautylog = require("beautylog");
-var Q = require("q");
-
-var myFunction = function () {
-    var done = Q.defer()
-    beautylog.log("Function executed");
-    done.resolve();
-    return done.promise;
-};
-var myFunction2 = function () {
-    var done = Q.defer();
-    beautylog.ok("Function2 executed");
-    done.resolve();
-    return done.promise;
-};
-var myFunction3 = function () {
-    var done = Q.defer();
-    beautylog.success("Function3 executed");
-    done.resolve();
-    return done.promise;
-};
-
-describe("gulpFunction",function(){
-    it("should run through smoothly with " + "'forEach'".blue,function(done){
-        gulp.src('./test/*.md')
-            .pipe(gulpFunction(myFunction,'forEach'))
-            .pipe(gulp.dest("./test/result/"));
-
-        gulp.src('./test/*.md')
-            .pipe(gulpFunction([myFunction2,myFunction3],'forEach'))
-            .pipe(gulp.dest("./test/result/"))
-            .pipe(gulpFunction(done,"atEnd"));
-
-    });
-
-    it("should run through smoothly with " + "'atEnd'".blue,function(done){
-        gulp.src('./test/*.md')
-            .pipe(gulpFunction(myFunction,'atEnd'))
-            .pipe(gulp.dest("./test/result/"));
-
-        gulp.src('./test/*.md')
-            .pipe(gulpFunction([myFunction2,myFunction3],'atEnd'))
-            .pipe(gulp.dest("./test/result/"))
-            .pipe(gulpFunction(done,"atEnd"));
-    });
-});
-

ts/tsd.json

@@ -1,15 +0,0 @@
-{
-  "version": "v4",
-  "repo": "borisyankov/DefinitelyTyped",
-  "ref": "master",
-  "path": "typings",
-  "bundle": "typings/tsd.d.ts",
-  "installed": {
-    "node/node.d.ts": {
-      "commit": "efa0c1196d7280640e624ac1e7fa604502e7bd63"
-    },
-    "colors/colors.d.ts": {
-      "commit": "3191f6e0088eee07c4d8fd24e4d27a40a60d9eb9"
-    }
-  }
-}

ts/typings.json

@@ -1,7 +0,0 @@
-{
-  "ambientDependencies": {
-    "node": "github:DefinitelyTyped/DefinitelyTyped/node/node.d.ts",
-    "mocha": "github:Bartvds/tsd-deftools/typings/DefinitelyTyped/mocha/mocha.d.ts",
-    "colors": "github:DefinitelyTyped/DefinitelyTyped/colors/colors.d.ts"
-  }
-}

tslint.json

@@ -0,0 +1,17 @@
+{
+  "extends": ["tslint:latest", "tslint-config-prettier"],
+  "rules": {
+    "semicolon": [true, "always"],
+    "no-console": false,
+    "ordered-imports": false,
+    "object-literal-sort-keys": false,
+    "member-ordering": {
+      "options":{
+        "order": [
+          "static-method"
+        ]
+      }
+    }
+  },
+  "defaultSeverity": "warning"
+}