gulpfile template for web site

var gulp = require('gulp')
    jade = require('gulp-jade')
    babel = require('gulp-babel')
    sass = require('gulp-sass')
    concat = require('gulp-concat')
    path = require('path');

paths = {
    jade: './src/jade/**/*.jade',
    sass: './src/sass/**/*.scss',
    js: './src/js/**/*.{js, jsx}',
    out: './public'
}

gulp.task('jade', () => {
    gulp.src(paths.jade)
        .pipe(jade({
            pretty: true
        }).on('error', console.log))
        .pipe(gulp.dest(paths.out));
});

gulp.task('sass', () => {
    gulp.src(paths.sass)
        .pipe(sass().on('error', console.log))
        .pipe(concat('style.css'))
        .pipe(gulp.dest(path.join(paths.out, 'css')));
});

gulp.task('js', () => {
    gulp.src(paths.js)
        .pipe(babel({
            presets: ['react']
        }))
        .pipe(concat('main.js'))
        .pipe(gulp.dest(path.join(paths.out, 'js')));
});

gulp.task('default', ['js', 'sass', 'jade']);