update to latest standards
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README.md
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README.md
@ -1,13 +1,16 @@
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# gulp-function
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accepts a function call as parameter to execute in gulp pipeline
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## Availabililty
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[![npm](https://pushrocks.gitlab.io/assets/repo-button-npm.svg)](https://www.npmjs.com/package/gulp-function)
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[![git](https://pushrocks.gitlab.io/assets/repo-button-git.svg)](https://GitLab.com/pushrocks/gulp-function)
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[![git](https://pushrocks.gitlab.io/assets/repo-button-mirror.svg)](https://github.com/pushrocks/gulp-function)
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[![docs](https://pushrocks.gitlab.io/assets/repo-button-docs.svg)](https://pushrocks.gitlab.io/gulp-function/)
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## Status for master
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[![build status](https://GitLab.com/pushrocks/gulp-function/badges/master/build.svg)](https://GitLab.com/pushrocks/gulp-function/commits/master)
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[![coverage report](https://GitLab.com/pushrocks/gulp-function/badges/master/coverage.svg)](https://GitLab.com/pushrocks/gulp-function/commits/master)
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[![npm downloads per month](https://img.shields.io/npm/dm/gulp-function.svg)](https://www.npmjs.com/package/gulp-function)
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@ -18,12 +21,43 @@ accepts a function call as parameter to execute in gulp pipeline
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[![node](https://img.shields.io/badge/node->=%206.x.x-blue.svg)](https://nodejs.org/dist/latest-v6.x/docs/api/)
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[![JavaScript Style Guide](https://img.shields.io/badge/code%20style-standard-brightgreen.svg)](http://standardjs.com/)
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## Usage
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Use TypeScript for best in class instellisense.
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### Usage
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```typescript
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import * as gulp from "gulp";
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import gulpFunction from "gulp-function"; // default ES6 export
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// import {forFirst, forEach, atEnd} from 'gulp-function'
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let myAsyncFunction = async (file, enc) => {
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// await some async stuff
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};
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gulp.task("gulpTest", function() {
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let stream = gulp
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.src("./mydir/*.something")
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.pipe(gulpFunction(myFunction, "forEach")) //read the notes below
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// .pipe(forEach(myFunction)) // if imported as >> import { forEach } from 'gulp-function' <<
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.pipe(gulp.dest("./build/"));
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return stream; // by returning the stream gulp knows when our task has finished.
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});
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```
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### Notes
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* The first argument of gulpFunction can also be an **array of multiple functionnames**.
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Each function can return a promise. The pipe stop will finish when every promise is fullfilled.
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When providing an array of functions be careful with modifying the file object -> race condition
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* The second argument can be empty, it defaults to "forEach"
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* The following options are available:
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* "forFirst" - executes when first chunk/vinylfile of the stream reaches the pipestop.
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file is pushed further down the line when function's returned promise is fullfilled.
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* "forEach" - executes like "forFirst" but with every chunk/vinylfile in the stream;
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* "atEnd" - executes after all chunks have passed and are processed in full.
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That means the stream's "finish" event fires **before "atLast" is executed**!!!
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For further information read the linked docs at the top of this README.
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> MIT licensed | **©** [Lossless GmbH](https://lossless.gmbh)
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| By using this npm module you agree to our [privacy policy](https://lossless.gmbH/privacy.html)
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> | By using this npm module you agree to our [privacy policy](https://lossless.gmbH/privacy.html)
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[![repo-footer](https://pushrocks.gitlab.io/assets/repo-footer.svg)](https://push.rocks)
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5
dist/index.d.ts
vendored
5
dist/index.d.ts
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/// <reference types="node" />
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import 'typings-global';
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import { Transform } from 'stream';
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export declare type TExecutionMode = 'forEach' | 'forFirst' | 'atEnd';
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import { Transform } from "stream";
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export declare type TExecutionMode = "forEach" | "forFirst" | "atEnd";
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export interface IPromiseFunction {
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(file?: any, enc?: any): PromiseLike<any>;
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}
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dist/index.js
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dist/index.js
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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require("typings-global");
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const through2 = require("through2");
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let defaultExport = (functionsToExecuteArg, executionModeArg = 'forEach') => {
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let defaultExport = (functionsToExecuteArg, executionModeArg = "forEach") => {
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let promiseArray = [];
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let runFunction = function (functionArg, file, enc) {
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let returnValue = functionArg(file, enc);
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if (typeof returnValue !== 'undefined' && typeof returnValue.then !== 'undefined') {
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if (typeof returnValue !== "undefined" &&
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typeof returnValue.then !== "undefined") {
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promiseArray.push(returnValue);
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}
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};
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let checkAndRunFunction = function (file, enc) {
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if (typeof functionsToExecuteArg === 'function') {
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if (typeof functionsToExecuteArg === "function") {
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runFunction(functionsToExecuteArg, file, enc);
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}
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else if (Array.isArray(functionsToExecuteArg)) {
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@ -20,22 +20,22 @@ let defaultExport = (functionsToExecuteArg, executionModeArg = 'forEach') => {
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}
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}
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else {
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throw new Error('gulp-callfunction: something is strange with the given arguments');
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throw new Error("gulp-callfunction: something is strange with the given arguments");
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}
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return Promise.all(promiseArray);
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};
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let hasExecutedOnce = false;
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let forEach = function (file, enc, cb) {
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// the forEach function is called for every chunk
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switch (executionModeArg) {
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case 'forEach':
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case "forEach":
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checkAndRunFunction(file, enc).then(function () {
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cb(null, file);
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});
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break;
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case 'forFirst':
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case "forFirst":
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if (hasExecutedOnce) {
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checkAndRunFunction(file, enc)
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.then(function () {
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checkAndRunFunction(file, enc).then(function () {
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cb(null, file);
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});
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}
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}
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hasExecutedOnce = true;
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break;
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case 'atEnd':
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case "atEnd":
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cb();
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break;
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default:
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}
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};
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let atEnd = function (cb) {
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if (executionModeArg === 'atEnd') {
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if (executionModeArg === "atEnd") {
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checkAndRunFunction(null, null).then(function () {
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cb();
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});
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@ -64,13 +64,13 @@ let defaultExport = (functionsToExecuteArg, executionModeArg = 'forEach') => {
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return through2.obj(forEach, atEnd);
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};
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exports.forEach = (funcArg) => {
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return defaultExport(funcArg, 'forEach');
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return defaultExport(funcArg, "forEach");
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};
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exports.forFirst = (funcArg) => {
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return defaultExport(funcArg, 'forFirst');
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return defaultExport(funcArg, "forFirst");
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};
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exports.atEnd = (funcArg) => {
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return defaultExport(funcArg, 'atEnd');
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return defaultExport(funcArg, "atEnd");
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};
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exports.default = defaultExport;
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### Usage
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```javascript
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import * as gulp from 'gulp';
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import gulpFunction from 'gulp-function' // default ES6 export
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// import {forFirst, forEach, atEnd} from 'gulp-function'
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let Q = require("q");
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let myFunction = function (file, enc) { // file and enc are optional in case you want to modify the file object
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let done = Q.defer();
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console.log("Hello World!")
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// NOTE:
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// you can use done.resolve as callback function
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// of any async tasks within this function
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done.resolve();
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return done.promise;
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}
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gulp.task('gulpTest',function() {
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let stream = gulp.src('./mydir/*.something')
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.pipe(gulpFunction(myFunction,'forEach')) //read the notes below
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// .pipe(forEach(myFunction)) // if imported as >> import { forEach } from 'gulp-function' <<
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.pipe(gulp.dest("./build/"));
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return stream; // by returning the stream gulp knows when our task has finished.
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});
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```
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### Notes:
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* The first argument of gulpFunction can also be an **array of multiple functionnames**.
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Each function can return a promise. The pipe stop will finish when every promise is fullfilled.
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When providing an array of functions be careful with modifying the file object -> race condition
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* The second argument can be empty, it defaults to "forEach"
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* 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**!!!
|
@ -14,7 +14,8 @@
|
||||
"keywords": [
|
||||
"gulpplugin",
|
||||
"gulp",
|
||||
"function"
|
||||
"function",
|
||||
"pushrocks"
|
||||
],
|
||||
"author": "Lossless GmbH <office@lossless.com> (https://lossless.com)",
|
||||
"license": "MIT",
|
||||
@ -25,8 +26,7 @@
|
||||
"dependencies": {
|
||||
"@types/through2": "^2.0.32",
|
||||
"smartq": "^1.1.6",
|
||||
"through2": "^2.0.3",
|
||||
"typings-global": "^1.0.16"
|
||||
"through2": "^2.0.3"
|
||||
},
|
||||
"devDependencies": {
|
||||
"gulp": "^3.9.1",
|
||||
|
107
ts/index.ts
107
ts/index.ts
@ -1,89 +1,92 @@
|
||||
import 'typings-global'
|
||||
import * as q from 'smartq'
|
||||
import * as through2 from 'through2'
|
||||
import { Transform } from 'stream'
|
||||
import * as q from "smartq";
|
||||
import * as through2 from "through2";
|
||||
import { Transform } from "stream";
|
||||
|
||||
export type TExecutionMode = 'forEach' | 'forFirst' | 'atEnd'
|
||||
export type TExecutionMode = "forEach" | "forFirst" | "atEnd";
|
||||
|
||||
export interface IPromiseFunction {
|
||||
(file?, enc?): PromiseLike<any>
|
||||
(file?, enc?): PromiseLike<any>;
|
||||
}
|
||||
|
||||
let defaultExport = (
|
||||
functionsToExecuteArg: IPromiseFunction | IPromiseFunction[],
|
||||
executionModeArg: TExecutionMode = 'forEach'
|
||||
executionModeArg: TExecutionMode = "forEach"
|
||||
): Transform => {
|
||||
|
||||
let promiseArray = []
|
||||
let promiseArray = [];
|
||||
let runFunction = function(functionArg, file, enc) {
|
||||
let returnValue = functionArg(file, enc)
|
||||
if (typeof returnValue !== 'undefined' && typeof returnValue.then !== 'undefined') {
|
||||
promiseArray.push(returnValue)
|
||||
}
|
||||
let returnValue = functionArg(file, enc);
|
||||
if (
|
||||
typeof returnValue !== "undefined" &&
|
||||
typeof returnValue.then !== "undefined"
|
||||
) {
|
||||
promiseArray.push(returnValue);
|
||||
}
|
||||
};
|
||||
|
||||
let checkAndRunFunction = function(file, enc) {
|
||||
if (typeof functionsToExecuteArg === 'function') {
|
||||
runFunction(functionsToExecuteArg, 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)
|
||||
runFunction(functionsToExecuteArg[anyFunction], file, enc);
|
||||
}
|
||||
} else {
|
||||
throw new Error('gulp-callfunction: something is strange with the given arguments')
|
||||
}
|
||||
return Promise.all(promiseArray)
|
||||
throw new Error(
|
||||
"gulp-callfunction: something is strange with the given arguments"
|
||||
);
|
||||
}
|
||||
return Promise.all(promiseArray);
|
||||
};
|
||||
|
||||
let hasExecutedOnce = false
|
||||
let forEach = function (file, enc, cb) { // the forEach function is called for every chunk
|
||||
let hasExecutedOnce = false;
|
||||
let forEach = function(file, enc, cb) {
|
||||
// the forEach function is called for every chunk
|
||||
switch (executionModeArg) {
|
||||
case 'forEach':
|
||||
case "forEach":
|
||||
checkAndRunFunction(file, enc).then(function() {
|
||||
cb(null, file)
|
||||
})
|
||||
break
|
||||
case 'forFirst':
|
||||
cb(null, file);
|
||||
});
|
||||
break;
|
||||
case "forFirst":
|
||||
if (hasExecutedOnce) {
|
||||
checkAndRunFunction(file, enc)
|
||||
.then(function () {
|
||||
cb(null, file)
|
||||
})
|
||||
checkAndRunFunction(file, enc).then(function() {
|
||||
cb(null, file);
|
||||
});
|
||||
} else {
|
||||
cb(null, file)
|
||||
cb(null, file);
|
||||
}
|
||||
hasExecutedOnce = true
|
||||
break
|
||||
case 'atEnd':
|
||||
cb()
|
||||
break
|
||||
hasExecutedOnce = true;
|
||||
break;
|
||||
case "atEnd":
|
||||
cb();
|
||||
break;
|
||||
default:
|
||||
break
|
||||
}
|
||||
break;
|
||||
}
|
||||
};
|
||||
|
||||
let atEnd = function(cb) {
|
||||
if (executionModeArg === 'atEnd') {
|
||||
if (executionModeArg === "atEnd") {
|
||||
checkAndRunFunction(null, null).then(function() {
|
||||
cb()
|
||||
})
|
||||
cb();
|
||||
});
|
||||
} else {
|
||||
cb()
|
||||
}
|
||||
}
|
||||
return through2.obj(forEach, atEnd)
|
||||
cb();
|
||||
}
|
||||
};
|
||||
return through2.obj(forEach, atEnd);
|
||||
};
|
||||
|
||||
export let forEach = (funcArg: IPromiseFunction) => {
|
||||
return defaultExport(funcArg, 'forEach')
|
||||
}
|
||||
return defaultExport(funcArg, "forEach");
|
||||
};
|
||||
|
||||
export let forFirst = (funcArg: IPromiseFunction) => {
|
||||
return defaultExport(funcArg, 'forFirst')
|
||||
}
|
||||
return defaultExport(funcArg, "forFirst");
|
||||
};
|
||||
|
||||
export let atEnd = (funcArg: IPromiseFunction) => {
|
||||
return defaultExport(funcArg, 'atEnd')
|
||||
}
|
||||
return defaultExport(funcArg, "atEnd");
|
||||
};
|
||||
|
||||
export default defaultExport
|
||||
export default defaultExport;
|
||||
|
Loading…
Reference in New Issue
Block a user