gulp> scss > autoprefixer > css

Gulpfile.js

/**
 * To install:
 * install npm
 * cd public_html/files/stylesheets
 * npm update
 *
 * to watch:
 * gulp
 * or to run sass once:
 * gulp sass
 */

var gulp = require('gulp');
var sass = require('gulp-sass');
var sourcemaps = require('gulp-sourcemaps');
// auto adds vendor prefixed props
var autoprefixer = require('gulp-autoprefixer');
var watch = require('gulp-watch');

var input = './**.scss';
var output = '.';


var sassOptions = {
    errLogToConsole: true,
    outputStyle: 'expanded'
};

// ... variables
var autoprefixerOptions = {
    browsers: ['last 5 versions', '> 0.5%'],
    // remove outdated props?
    remove: false
};

gulp.task('sass', function () {
    return gulp
        .src(input)
        .pipe(sourcemaps.init())
        .pipe(sass(sassOptions).on('error', sass.logError))
        .pipe(sourcemaps.write())
        .pipe(autoprefixer(autoprefixerOptions))
        .pipe(gulp.dest(output));
});

gulp.task('default', function () {
    console.log('watching for scss file changes...');
    gulp.watch(input, ['sass']);
});

package.json

{
  "name": "stylesheets",
  "version": "1.0.0",
  "description": "",
  "main": "Gulpfile.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "gulp": "^3.9.1",
    "gulp-autoprefixer": "^3.1.1",
    "gulp-sass": "^2.3.2",
    "gulp-sourcemaps": "^1.6.0",
    "gulp-watch": "^4.3.9"
  }
}