缩小 CSS + Gulp

Question

我有这个 gulpfile.js 来编译 css，但我也想缩小我的 css。我尝试运行我在互联网上找到的许多不同的代码，但它们都不起作用。任何人都可以帮助我吗？谢谢

    var gulp = require('gulp');
var sass = require('gulp-sass');

gulp.task('sass', gulp.series(function() {
    return gulp.src(['scss/*.scss'])
        .pipe(sass()) // converter o Sass em CSS
        .pipe(gulp.dest('css'));
}));

gulp.task('watch', gulp.series(function() {
    gulp.watch(['scss/*.scss'], gulp.parallel(['sass']));
}));

gulp.task('default', gulp.series(['sass', 'watch']));

Answer 1

Try This
i am sharing two function one for css and and another for sass
run this command

 npm install gulp-concat gulp-autoprefixer gulp-sass gulp-sass-glob node-sass --save-dev 

//复制这段代码并设置

const { src, dest } = require("gulp");
const concat = require("gulp-concat");
const autoprefixer = require("gulp-autoprefixer");
const sass = require("gulp-sass");
const sassGlob = require("gulp-sass-glob");
sass.compiler = require("node-sass");



function css() {
    return src("src/css/*.css")
        .pipe(concat("style.css"))
        .pipe(sassGlob())
        .pipe(
            sass({
                outputStyle: "compressed" //expand or compact or compressed
            }).on("error", sass.logError)
        )
        .pipe(
            autoprefixer({
                cascade: true
            })
        )
        .pipe(dest("build/css/"));
}


function scss() {
    return src('src/scss/style.scss') // import your all file in style.scss
        .pipe(sassGlob())
        .pipe(
            sass({
                outputStyle: 'compressed' // you can set "expand or compact or compressed" view 
            })
                .on('error', sass.logError)
        ).pipe(
            autoprefixer({
                cascade: true
            })
        ).pipe(dest('build/scss/'));
}

exports.css = css;
exports.scss= scss;

Answer 2

要修复您的代码，请尝试：

gulp.task('sass', function() {
    return gulp.src(['scss/*.scss'])
        .pipe(sass()) // converter o Sass em CSS
        .pipe(gulp.dest('css'));
});

gulp.task('watch', function() {
    gulp.watch(['scss/*.scss'], gulp.series('sass'));
});

gulp.task('default', gulp.series('sass', 'watch'));

---

但是这种形式的函数更好：

     // renamed since your plugin name is apparently `sass` as well
function sass2css() {   
    return gulp.src(['scss/*.scss'])
        .pipe(sass()) // converter o Sass em CSS
        .pipe(gulp.dest('css'));
};

function watch() {
    gulp.watch(['scss/*.scss'], gulp.series(sass2css));
});

gulp.task('default', gulp.series(sass2css, watch));

Answer 3

这是我的 gulp 文件，它编译并缩小 css 和 js （它也有一些图像和 php 文件的数据，但它们没有被使用）

var gulp = require('gulp'),
    gutil = require('gulp-util'),
    touch = require('gulp-touch-cmd'),
    plugin = require('gulp-load-plugins')(),
    merge = require('merge-stream');

// Select Foundation components, remove components project will not use
const SOURCE = {
    scripts: [
        // Place custom JS here, files will be concantonated, minified if ran with --production
        'assets/scripts/**/*.js',
    ],

    // Scss files will be concantonated, minified if ran with --production
    styles: 'assets/style/scss/**/*.scss',

    // Images placed here will be optimized
    images: 'assets/images/src/**/*',

    php: '**/*.php'
};

const ASSETS = {
    styles: 'assets/style/',
    stylesDist: 'assets/dist/style',
    scripts: 'assets/scripts/',
    scriptsDist: 'assets/dist/scripts',
    images: 'assets/images/',
    all: 'assets/dist/'
};

gulp.task('log', function() {
    console.log(ASSETS.styles);
});

// Compile Sass, Autoprefix and minify
gulp.task('styles', function () {

    var bulk = gulp.src(SOURCE.styles);

    return merge(bulk)
        .pipe(plugin.plumber(function (error) {
            gutil.log(gutil.colors.red(error.message));
            this.emit('end');
        }))
        .pipe(plugin.sourcemaps.init())
        .pipe(plugin.sass())
        .pipe(plugin.autoprefixer({
            browsers: [
                'last 2 versions',
                'ie >= 9',
                'ios >= 7'
            ],
            cascade: false
        }))
        .pipe(plugin.cssnano({ safe: true, minifyFontValues: { removeQuotes: false } }))
        .pipe(plugin.sourcemaps.write('.'))
        .pipe(gulp.dest(ASSETS.stylesDist))
        .pipe(touch());
});


// GULP FUNCTIONS
// JSHint, concat, and minify JavaScript
gulp.task('scripts', function () {

    // Use a custom filter so we only lint custom JS

    return gulp.src(SOURCE.scripts)
        .pipe(plugin.plumber(function (error) {
            gutil.log(gutil.colors.red(error.message));
            this.emit('end');
        }))
        .pipe(plugin.sourcemaps.init())
        .pipe(plugin.babel({
            presets: ['es2015'],
            compact: true,
            ignore: ['what-input.js']
        }))
        .pipe(plugin.concat('scripts.js'))
        .pipe(plugin.uglify())
        .pipe(plugin.sourcemaps.write('.')) // Creates sourcemap for minified JS
        .pipe(gulp.dest(ASSETS.scriptsDist))
        .pipe(touch());
});


// Watch files for changes (without Browser-Sync)
gulp.task('watch', function () {
    // Watch .scss files
    gulp.watch(SOURCE.styles, gulp.parallel('styles'));

    // Watch scripts files
    gulp.watch(SOURCE.scripts, gulp.parallel('scripts'));
});

这是我用过的另一个

// Initialize modules
// Importing specific gulp API functions lets us write them below as series() instead of gulp.series()
const { src, dest, watch, series, parallel } = require('gulp');
// Importing all the Gulp-related packages we want to use
const sourcemaps = require('gulp-sourcemaps');
const sass = require('gulp-sass');
const concat = require('gulp-concat');
const uglify = require('gulp-uglify');
const postcss = require('gulp-postcss');
const autoprefixer = require('autoprefixer');
const cssnano = require('cssnano');
var replace = require('gulp-replace');


// File paths
const files = { 
    scssPath: 'site/templates/styles/sass/**/*.scss',
    jsPath: 'site/templates/scripts/**/*.js'
}

// Sass task: compiles the style.scss file into style.css
function scssTask(){    
    return src(files.scssPath)
        .pipe(sourcemaps.init()) // initialize sourcemaps first
        .pipe(sass()) // compile SCSS to CSS
        .pipe(postcss([ autoprefixer(), cssnano() ])) // PostCSS plugins
        .pipe(sourcemaps.write('.')) // write sourcemaps file in current directory
        .pipe(dest('site/templates/dist')
    ); // put final CSS in site/templates/dist folder
}

// JS task: concatenates and uglifies JS files to script.js
function jsTask(){
    return src([
        files.jsPath
        //,'!' + 'includes/js/jquery.min.js', // to exclude any specific files
        ])
        .pipe(concat('all.js'))
        .pipe(uglify())
        .pipe(dest('site/templates/dist')
    );
}

// Cachebust
var cbString = new Date().getTime();
function cacheBustTask(){
    return src(['index.html'])
        .pipe(replace(/cb=\d+/g, 'cb=' + cbString))
        .pipe(dest('.'));
}

// Watch task: watch SCSS and JS files for changes
// If any change, run scss and js tasks simultaneously
function watchTask(){
    watch([files.scssPath, files.jsPath], 
        series(
            parallel(scssTask, jsTask)
        )
    );    
}

// Export the default Gulp task so it can be run
// Runs the scss and js tasks simultaneously
// then runs cacheBust, then watch task
exports.default = series(
    parallel(scssTask, jsTask), 
    watchTask
);