Gulp minifyCss remove special comments

Question

I am using gulp minifyCss to minify my css to reduce filesize. My gulp task looks something like this:

gulp.task('minify-css', function() {
  return gulp.src('styles/*.css')
    .pipe(concatCss("all.css").on('error', standardHandler))
    .pipe(minifyCss().on('error', standardHandler))
    .pipe(gulp.dest('dist'));
});

It works fine and output as expected. However, it does not remove special comments /*! comment */

How can I get minifyCss to have special comments removed?

Just an FYI `gulp-minify-css` has been [deprecated](https://www.npmjs.com/package/gulp-minify-css) in favor of [gulp-clean-css](https://github.com/scniro/gulp-clean-css) — scniro, Mar 02 '16 at 00:39

Ufuk Hacıoğulları · Accepted Answer · 2015-08-12T08:34:17.640

16

You should set keepSpecialComments option:

gulp.task('minify-css', function() {
  return gulp.src('styles/*.css')
    .pipe(concatCss("all.css").on('error', standardHandler))
    .pipe(minifyCss({keepSpecialComments : 0}).on('error', standardHandler))
    .pipe(gulp.dest('dist'));
});

edited Aug 12 '15 at 08:34

answered Aug 12 '15 at 08:29

Ufuk Hacıoğulları

37,978
12
114
156

2

As of 4.0 (clean-css), keepSpecialComments has been renamed to just: specialComments – Anuga May 11 '17 at 10:04

score 1 · Answer 2 · answered Apr 28 '18 at 10:47

1

Now Ufuk's variant not working. Try this:

.pipe(cleanCSS({level: {1: {specialComments: false}}}))

answered Apr 28 '18 at 10:47

GrimCap

31
5

Gulp minifyCss remove special comments

2 Answers2