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CSS Sourcemaps not generating properly with gulp, SASS, & autoprefixer

Tags:

gulp

gulp-sass

I have the following gulp task:

var gulp = require('gulp'),
    sass = require('gulp-ruby-sass'),
    autoprefixer = require('gulp-autoprefixer');

gulp.src('html/css/sass/*.scss')
    .pipe(sass({
        style: 'compressed',
        loadPath: 'plugin/css/sass',
        sourcemap: true,
        sourcemapPath: '/css/sass',
        container : 'local_sass'
    }))
    .pipe(autoprefixer())
    .pipe(gulp.dest('html/css'));

The problem I'm having is the SASS compiler is properly generating the sourcemaps and adding the sourcemap comment, but then autoprefixer removes the comment (and I don't think it's updating the sourcemaps either).

I've tried removing autoprefixer and it works perfectly, but when I put it back in, they comment is removed. I also tried adding { map: true }, but then each sourcemap just has the name to.css.map. I also tried adding from and to but I don't know how to do tell it current filename so it always writes to the same filename.

How would I go about getting autoprefixer to co-operate and update the sourcemaps? Is there another plugin I need to use?

Packages:

"gulp": "~3.8.6",
"gulp-autoprefixer": "~0.0.8",
"gulp-ruby-sass": "~0.7.0",
like image 737
Darryl Hein Avatar asked Jul 26 '14 04:07

Darryl Hein


1 Answers

You can use gulp-sourcemaps if you switch to gulp-sass. Both gulp-sass and gulp-autoprefixer support gulp sourcemaps.

Implementation would look something like:

var gulp = require('gulp');
var gulpSass = require('gulp-sass');
var gulpAutoprefixer = require('gulp-autoprefixer');
var sourcemaps = require('gulp-sourcemaps');

gulp.task('javascript', function() {
  gulp.src('src/**/*.scss')
  .pipe(sourcemaps.init())
  .pipe(gulpSass())
  .pipe(gulpAutoprefixer())
  .pipe(sourcemaps.write('../maps'))
  .pipe(gulp.dest('dist'));
});

Which would write .map files in a maps directory.

Note: All manipulations from source .scss to target .css must be in the stream between sourcemaps.init() and sourcemaps.write(). This includes any minification such as gulp-uglify, which also supports gulp-sourcemaps.

like image 156
linuxdan Avatar answered Nov 01 '22 23:11

linuxdan