My Gulp Build Script

Standard-Gulp-Build.js

var gulp = require('gulp'),
    jshint = require('gulp-jshint'),
    sass = require('gulp-sass'),
    sourcemaps = require('gulp-sourcemaps'),
    uglify = require('gulp-uglify'),
    gutil = require('gulp-util'),
    concat = require('gulp-concat'),
    babel = require('gulp-babel'),
    gzip = require('gulp-gzip'),
    minifyCss = require('gulp-minify-css'),
    autoprefixer = require('gulp-autoprefixer');

var config = {
  bootstrapDir: './bower_components/bootstrap-sass',
  publicDir: './public',
};

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

// ---------------------------------------------------------------------------------
// SASS & CSS Tasks
// ---------------------------------------------------------------------------------
gulp.task('build-css', function() {
  // return gulp.src('source/scss/**/*.scss')
  return gulp.src('source/scss/app.scss')
    .pipe(sass({includePaths: [config.bootstrapDir + '/assets/stylesheets'],}))
    .pipe(gutil.env.type === 'production' ? minifyCss() : gutil.noop())
    .pipe(autoprefixer({
      browsers: ['> 5%', 'last 1 version'],
      cascade: false
    }))
    .pipe(gulp.dest('public/assets/stylesheets'));
});

gulp.task('build-css-gzip', function() {
  // return gulp.src('source/scss/**/*.scss')
  return gulp.src('source/scss/app.scss')
    .pipe(sass({includePaths: [config.bootstrapDir + '/assets/stylesheets'],}))
    .pipe(gutil.env.type === 'production' ? minifyCss() : gutil.noop())
    .pipe(autoprefixer({
      browsers: ['> 5%', 'last 1 version'],
      cascade: false
    }))
    .pipe(gzip())
    .pipe(gulp.dest('public/assets/stylesheets'));
});


// ---------------------------------------------------------------------------------
// Javascript Tasks
// ---------------------------------------------------------------------------------
gulp.task('build-js', function() {
  return gulp.src('source/javascripts/**/*.js')
    .pipe(babel())
    .pipe(sourcemaps.init())
    .pipe(concat('bundle.js'))
    .pipe(sourcemaps.write())
    .pipe(gulp.dest('public/assets/javascripts'));
});

gulp.task('build-js-gzip', function() {
  return gulp.src('source/javascripts/**/*.js')
    .pipe(babel())
    .pipe(sourcemaps.init())
    .pipe(concat('bundle.js'))
    .pipe(uglify())
    .pipe(sourcemaps.write())
    .pipe(gzip())
    .pipe(gulp.dest('public/assets/javascripts'));
});

// configure the jshint task
gulp.task('jshint', function() {
  return gulp.src('source/javascripts/**/*.js')
    .pipe(jshint())
    .pipe(jshint.reporter('jshint-stylish'));
});

// ---------------------------------------------------------------------------------
// Misc Tasks
// ---------------------------------------------------------------------------------
gulp.task('build-fonts', function() {
    return gulp.src(config.bootstrapDir + '/assets/fonts/**/*')
    .pipe(gulp.dest(config.publicDir + '/fonts'));
});

gulp.task('move', function(){
  gulp.src('source/**/*.html')
  .pipe(gulp.dest('public/'));
});

// ---------------------------------------------------------------------------------
// Production Deployment Tasks
// ---------------------------------------------------------------------------------
gulp.task('deploy', ['build-js',
    'build-js-gzip',
    'build-css',
    'build-css-gzip',
    'move',
    'build-fonts']);



// ---------------------------------------------------------------------------------
// Watch
// ---------------------------------------------------------------------------------
// configure which files to watch and what tasks to use on file changes
gulp.task('watch', function() {
  gulp.watch('source/javascripts/**/*.js', ['build-js']);
  gulp.watch(['source/scss/**/*.scss'], ['build-css']);
  gulp.watch(['source/**/*.html'], ['move']);
});