Gulp：编译CoffeeScript

从编译CoffeeScript看Gulp的使用

本文环境:

• npm
• Ubuntu

安装CoffeeScript

sudo npm install -g coffee-script

安装Gulp

官网只有第一句,但是这样是不能找到gulp,所以两句都要执行:

sudo npm install --global gulp
sudo npm install gulp

给项目初始化npm配置

sudo npm init

根据提示配置好package.json,大概这样:

{
  "name": "EasyCanvas",
  "version": "0.0.0",
  "description": "A HTML5 canvas library based on pure JavaScript",
  "main": "EasyCanvas.js",
  "directories": {
    "test": "test"
  },
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "repository": {
    "type": "git",
    "url": "https://github.com/younglaker/EasyCanvas.git"
  },
  "author": "Laker Huang",
  "license": "MIT",
  "bugs": {
    "url": "https://github.com/younglaker/EasyCanvas/issues"
  }
}

安装gulp-coffee

gulp-coffee : Coffeescript plugin for gulp

可以全局安装

sudo npm install --global gulp-coffee

也可以只安装到本目录,并且添加信息到package.json里:

sudo npm install --save gulp-coffee

安装gulp-util

gulp-util : Utilities for gulp plugins .

sudo npm install --save gulp-util

配置gulp

在项目里建个gulpfile.js:

var gulp = require('gulp');
var coffee = require('gulp-coffee');
var gutil = require('gulp-util');

gulp.task('default', function() {
  // 默认的任务代码
});

gulp.task('coffee', function() {
  gulp.src('./coffee_directions/*.coffee')
    .pipe(coffee({bare: true}).on('error', gutil.log))
    .pipe(gulp.dest('./js_directions/'))
});

执行coffee任务

gulp coffee