/**
* 1. LESS编译 压缩 合并
* 2. JS合并 压缩 混淆
* 3. img复制
* 4. html压缩
*/
// 在gulpfile中先载入gulp包,因为这个包提供了一些API
var gulp = require('gulp');
var less = require('gulp-less');
var cssnano = require('gulp-cssnano');
// 1. LESS编译 压缩 --合并没有必要,一般预处理CSS都可以导包
gulp.task('style', function() {
// 这里是在执行style任务时自动执行的
gulp.src(['src/styles/*.less', '!src/styles/_*.less'])
.pipe(less())
.pipe(cssnano())
.pipe(gulp.dest('dist/styles'))
.pipe(browserSync.reload({
stream: true
}));
});
var concat = require('gulp-concat');
var uglify = require('gulp-uglify');
// 2. JS合并 压缩混淆
gulp.task('script', function() {
gulp.src('src/scripts/*.js')
.pipe(concat('all.js'))
.pipe(uglify())
.pipe(gulp.dest('dist/scripts'))
.pipe(browserSync.reload({
stream: true
}));
});
// 3. 图片复制
gulp.task('image', function() {
gulp.src('src/images/*.*')
.pipe(gulp.dest('dist/images'))
.pipe(browserSync.reload({
stream: true
}));
});
var htmlmin = require('gulp-htmlmin');
// 4. HTML
gulp.task('html', function() {
gulp.src('src/*.html')
.pipe(htmlmin({
collapseWhitespace: true,
removeComments: true
}))
.pipe(gulp.dest('dist'))
.pipe(browserSync.reload({
stream: true
}));
});
var browserSync = require('browser-sync');
gulp.task('serve', function() {
browserSync({
server: {
baseDir: ['dist']
},
}, function(err, bs) {
console.log(bs.options.getIn(["urls", "local"]));
});
gulp.watch('src/styles/*.less',['style']);
gulp.watch('src/scripts/*.js',['script']);
gulp.watch('src/images/*.*',['image']);
gulp.watch('src/*.html',['html']);
});
附录:
gulp常用插件:
gulp-less:编译less
gulp-concat:合并代码
gulp-uglify:压缩js文件
gulp-rename:重命名文件
gulp-cssnano:css压缩
gulp-htmlmin:压缩html
gulp-imagemin:压缩图像
brower-sync:用来代替创建服务器
gulp-connect:创建本地服务器