Install

npm install gulp-clean-css

yarn add gulp-clean-css

gulp-clean-css

gulp plugin to minify CSS, using clean-css

Regarding Issues

This is just a simple gulp plugin, which means it's nothing more than a thin wrapper around clean-css. If it looks like you are having CSS related issues, please contact clean-css. Only create a new issue if it looks like you're having a problem with the plugin itself.

Install

npm install gulp-clean-css --save-dev

API

cleanCSS([options], [callback])

options

See the CleanCSS options.

 const gulp = require('gulp');
const cleanCSS = require('gulp-clean-css');

gulp.task('minify-css', () => {
  return gulp.src('styles/*.css')
    .pipe(cleanCSS({compatibility: 'ie8'}))
    .pipe(gulp.dest('dist'));
});

callback

Useful for returning details from the underlying minify() call. An example use case could include logging stats of the minified file. In addition to the default object, gulp-clean-css provides the file name and path for further analysis.

 const gulp = require('gulp');
const cleanCSS = require('gulp-clean-css');

gulp.task('minify-css', () => {
  return gulp.src('styles/*.css')
    .pipe(cleanCSS({debug: true}, (details) => {
      console.log(`${details.name}: ${details.stats.originalSize}`);
      console.log(`${details.name}: ${details.stats.minifiedSize}`);
    }))
  .pipe(gulp.dest('dist'));
});

Source Maps can be generated by using gulp-sourcemaps.

 
const gulp = require('gulp');
const cleanCSS = require('gulp-clean-css');
const sourcemaps = require('gulp-sourcemaps');

gulp.task('minify-css',() => {
  return gulp.src('./src/*.css')
    .pipe(sourcemaps.init())
    .pipe(cleanCSS())
    .pipe(sourcemaps.write())
    .pipe(gulp.dest('dist'));
});