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

var input = './stylesheets/style.scss';
var output = './stylesheets';
var sassOptions = {
  errLogToConsole: true,
  outputStyle: 'expanded'
};
var autoprefixerOptions = {
  browsers: ['last 2 versions', '> 5%', 'Firefox ESR']
};

gulp.task('sass', function () {
  return gulp
    // Find all `.scss` files from the `stylesheets/` folder
    .src(input)
    .pipe(sourcemaps.init())
    // Run Sass on those files
    .pipe(sass(sassOptions).on('error', sass.logError))
    .pipe(sourcemaps.write())
    .pipe(autoprefixer())
    // Write the resulting CSS in the output folder
    .pipe(gulp.dest(output));
});