原文地址：Creating automation tools for custom themes (Gulpjs)

使用自动化工具简化主题创建任务，这里我们将使用gulpjs给自定义主题创建自动化工具。

步骤：

1. 安装Node.js

从nodejs.org下载并安装最新版NodeJS，不同操作系统安装过程有差异。

1. 配置 gulpfile.js

进入你的自定义主题目录。

通常使用 cmd/terminal 创建一个gulpfile.js或者右键点击创建新文件，打开gulpfile.js文件，复制并粘贴整个代码(到新建空白文件中)。

注意：我把我的原始文件放在“src”文件夹中，已经新建好的文件放入主题跟目录，因此，当sass文件从“my_sustom_theme_folder/src/scss”目录编译时，它们将被编译并放入“my_custom_theme_folder/css”.

var gulp = require('gulp'),
	livereload = require('gulp-livereload'),
	gulpIf = require('gulp-if'),
	eslint = require('gulp-eslint'),
	sass = require('gulp-sass'),
	autoprefixer = require('gulp-autoprefixer'),
	sourcemaps = require('gulp-sourcemaps'),
	imagemin = require('gulp-imagemin'),
	pngquant = require('imagemin-pngquant');
	 
gulp.task('imagemin', function () {
    return gulp.src('./src/images/*')
        .pipe(imagemin({
            progressive: true,
            svgoPlugins: [{removeViewBox: false}],
            use: [pngquant()]
        }))
        .pipe(gulp.dest('./images'));
});


gulp.task('sass', function () {
  gulp.src('./src/sass/**/*.scss')
    .pipe(sourcemaps.init())
        .pipe(sass({outputStyle: 'compressed'}).on('error', sass.logError))
        .pipe(autoprefixer('last 2 version'))
    .pipe(sourcemaps.write('./'))
    .pipe(gulp.dest('./css'));
});

function isFixed(file) {
	// Has ESLint fixed the file contents?
	return file.eslint != null && file.eslint.fixed;
}

gulp.task('eslint', function(){
	gulp.src(['./src/js/*.js'])
		.pipe(eslint({
			
  				"extends": "eslint:recommended",
 				"env": {
    				"browser": true
  				},
  				"globals": {
    				"Drupal": true,
    				"drupalSettings": true,
   				"drupalTranslations": true,
    				"domready": true,
    				"jQuery": true,
   				"_": true,
    				"matchMedia": true,
    				"Backbone": true,
    				"Modernizr": true,
    				"CKEDITOR": true
 				 },
 			 "rules": {
    			// Errors.
    			"array-bracket-spacing": [2, "never"],
    			"block-scoped-var": 2,
   			"brace-style": [2, "stroustrup", {"allowSingleLine": true}],
    			"comma-dangle": [2, "never"],
    			"comma-spacing": 2,
    			"comma-style": [2, "last"],
    			"computed-property-spacing": [2, "never"],
    			"curly": [2, "all"],
    			"eol-last": 2,
    			"eqeqeq": [2, "smart"],
    			"guard-for-in": 2,
    			"indent": [2, 2, {"SwitchCase": 1}],
   			"key-spacing": [2, {"beforeColon": false, "afterColon": true}],
    			"linebreak-style": [2, "unix"],
    			"lines-around-comment": [2, {"beforeBlockComment": true, "afterBlockComment": false}],
    			"new-parens": 2,
    			"no-array-constructor": 2,
    			"no-caller": 2,
    			"no-catch-shadow": 2,
    			"no-empty-label": 2,
    			"no-eval": 2,
    			"no-extend-native": 2,
    			"no-extra-bind": 2,
    			"no-extra-parens": [2, "functions"],
    			"no-implied-eval": 2,
    			"no-iterator": 2,
    			"no-label-var": 2,
    			"no-labels": 2,
    			"no-lone-blocks": 2,
    			"no-loop-func": 2,
    			"no-multi-spaces": 2,
    			"no-multi-str": 2,
    			"no-native-reassign": 2,
    			"no-nested-ternary": 2,
    			"no-new-func": 2,
    			"no-new-object": 2,
   			"no-new-wrappers": 2,
    			"no-octal-escape": 2,
    			"no-process-exit": 2,
    			"no-proto": 2,
    			"no-return-assign": 2,
    			"no-script-url": 2,
    			"no-sequences": 2,
    			"no-shadow-restricted-names": 2,
    			"no-spaced-func": 2,
    			"no-trailing-spaces": 2,
    			"no-undef-init": 2,
    			"no-undefined": 2,
    			"no-unused-expressions": 2,
    			"no-unused-vars": [2, {"vars": "all", "args": "none"}],
   			"no-with": 2,
    			"object-curly-spacing": [2, "never"],
    			"one-var": [2, "never"],
    			"quote-props": [2, "consistent-as-needed"],
    			"semi": [2, "always"],
    			"semi-spacing": [2, {"before": false, "after": true}],
    			"space-after-keywords": [2, "always"],
    			"space-before-blocks": [2, "always"],
    			"space-before-function-paren": [2, {"anonymous": "always", "named": "never"}],
    			"space-in-parens": [2, "never"],
    			"space-infix-ops": 2,
    			"space-return-throw-case": 2,
    			"space-unary-ops": [2, { "words": true, "nonwords": false }],
    			"spaced-comment": [2, "always"],
    			"strict": 2,
    			"yoda": [2, "never"],
    			// Warnings.
    			"max-nested-callbacks": [1, 3],
    			"valid-jsdoc": [1, {
      			"prefer": {
       		 		"returns": "return",
        				"property": "prop"
      			},
     	 		"requireReturn": false
    			}]
 	 		},
 	 		fix: true,
			
	}))
	.pipe(eslint.format())
	// if fixed, write the file to dest
	.pipe(gulpIf(isFixed, gulp.dest('./js/')));;
});

gulp.task('watch', function(){
    livereload.listen();

    gulp.watch('./src/sass/**/*.scss', ['sass']);
    gulp.watch('./src/js/**/*.js', ['eslint']);
    gulp.watch(['./css/style.css', './**/*.html.twig', './js/*.js'], function (files){
        livereload.changed(files)
    });
});

1. 设置包管理器

在自定义主题目录中在terminal中键入 npm init，并填写在创建package.json时被请求的必要信息。

1. 安装依赖包

在自定义主题目录中在terminal中键入 npm install <packagename> .这将下载gulp文件和它的关联依赖包并将创建一个目录“node_modules”.

1. 从 cmd/terminal 运行自动化工具

现在你已经准备好运行gulp自动化工具了。

键入 gulp watch 命令。