Lost 6.0.0 gulpfile

gulpfile.js

var gulp = require('gulp'),
    sourcemaps = require('gulp-sourcemaps'),
    postcss = require('gulp-postcss'),
    autoprefixer = require('gulp-autoprefixer'),
    lost = require('lost');

var paths = {
  cssSource: 'src/css',
  cssDestination: 'dist/css'
};

gulp.task('styles', function() {
  return gulp.src(paths.cssSource + '/**/*.css')
    .pipe(sourcemaps.init())
    .pipe(postcss([
      lost()
    ]))
    .pipe(autoprefixer())
    .pipe(sourcemaps.write('./'))
    .pipe(gulp.dest(paths.cssDestination));
});

gulp.watch(paths.cssSource + '/**/*.css', ['styles']);

gulp.task('default', ['styles']);