gulp-sequence
====
Run a series of gulp tasks in order.
[![NPM version][npm-image]][npm-url]
[![Build Status][travis-image]][travis-url]
[![Downloads][downloads-image]][downloads-url]
## Install
Install with [npm](https://npmjs.org/package/gulp-sequence)
```
npm install --save-dev gulp-sequence
```
## Usage
```js
var gulp = require('gulp')
var gulpSequence = require('gulp-sequence')
gulp.task('a', function (cb) {
//... cb()
})
gulp.task('b', function (cb) {
//... cb()
})
gulp.task('c', function (cb) {
//... cb()
})
gulp.task('d', function (cb) {
//... cb()
})
gulp.task('e', function (cb) {
//... cb()
})
gulp.task('f', function () {
// return stream
return gulp.src('*.js')
})
// usage 1, recommend
// 1. run 'a', 'b' in parallel;
// 2. run 'c' after 'a' and 'b';
// 3. run 'd', 'e' in parallel after 'c';
// 3. run 'f' after 'd' and 'e'.
gulp.task('sequence-1', gulpSequence(['a', 'b'], 'c', ['d', 'e'], 'f'))
// usage 2
gulp.task('sequence-2', function (cb) {
gulpSequence(['a', 'b'], 'c', ['d', 'e'], 'f', cb)
})
// usage 3
gulp.task('sequence-3', function (cb) {
gulpSequence(['a', 'b'], 'c', ['d', 'e'], 'f')(cb)
})
gulp.task('gulp-sequence', gulpSequence('sequence-1', 'sequence-2', 'sequence-3'))
```
**with `gulp.watch`**:
```js
gulp.watch('src/**/*.js', function (event) {
gulpSequence('a', 'b')(function (err) {
if (err) console.log(err)
})
})
```
## API
```js
var gulpSequence = require('gulp-sequence')
```
### gulpSequence('subtask1', 'subtask2',...[, callback])
return a [thunk](https://github.com/teambition/thunks) function.
```js
var gulp = require('gulp')
var gulpSequence = require('gulp-sequence')
gulp.task('test', gulpSequence(['a', 'b'], 'c', ['d', 'e'], 'f'))
```
### gulpSequence.use(gulp)
return a new gulpSequence function with the gulp. If you have some errors such as "task xxx is not defined", this will resolve it.
```js
var gulp = require('gulp')
var gulpSequence = require('gulp-sequence').use(gulp)
gulp.task('test', gulpSequence(['a', 'b'], 'c', ['d', 'e'], 'f'))
```
## License
MIT © [Teambition](https://www.teambition.com)
[npm-url]: https://npmjs.org/package/gulp-sequence
[npm-image]: http://img.shields.io/npm/v/gulp-sequence.svg
[travis-url]: https://travis-ci.org/teambition/gulp-sequence
[travis-image]: http://img.shields.io/travis/teambition/gulp-sequence.svg
[downloads-url]: https://npmjs.org/package/gulp-sequence
[downloads-image]: http://img.shields.io/npm/dm/gulp-sequence.svg?style=flat-square
