var gulp = require('gulp');

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

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

var minifycss = require('gulp-minify-css');

var concatCss = require('gulp-concat-css');

var rename = require('gulp-rename');

var notify = require('gulp-notify');

var del = require('del');

gulp.task('clean', function(cb) {

del(['build'], cb);

});

gulp.task('styles', function() {

return gulp.src('sass/style.scss')

.pipe(sass({ style: 'expanded' }))

.pipe(autoprefixer('last 2 version', 'safari 5', 'ie 8', 'ie 9', 'opera 12.1', 'ios 6', 'android 4'))

.pipe(rename('style.css'))

.pipe(gulp.dest('css/'))

.pipe(notify({ message: 'SASS compiled quite nicely...' }));

});

gulp.task('watch', function() {

gulp.watch('sass/**', ['styles']);

});

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

function errorHandler (error) {

console.log(error.toString());

this.emit('end');

}