First gulpfile ever made for some awesome-y projects

gulpfile.js

var    gulp = require('gulp'),
       sass = require('gulp-sass'),
      watch = require('gulp-watch'),
        to5 = require('gulp-6to5'),
 browserify = require('gulp-browserify'),
     uglify = require('gulp-uglify'),
     rename = require('gulp-rename'),
runSequence = require('run-sequence');

gulp.task('watch', function () {
  // Watch sass files
  // Then run the sass task
  watch('./css/lib/**/*.scss', function () {
    gulp.start('sass');
  });

  // Watch JS files
  // Then run scripts task
  // This compiles es6 to es5
  // Then browserify
  // Then uglify
  watch('./js/lib/**/*.js', function () {
    gulp.start('scripts');
  });
});

gulp.task('6to5', function () {
  return gulp.src('./js/lib/**/*.js')
             .pipe(to5())
             .pipe(gulp.dest('./js/compiled'));
});

gulp.task('browserify', function () {
  return gulp.src('./js/compiled/app.js')
             .pipe(browserify())
             .pipe(gulp.dest('./js/dist'));
});

gulp.task('uglify', function () {
  return gulp.src('./js/dist/app.js')
             .pipe(uglify())
             .pipe(rename({
               suffix: '.min'
             }))
             .pipe(gulp.dest('./js/dist'));
});

gulp.task('sass', function () {
  gulp.src('./css/lib/style.scss')
      .pipe(sass({
        outputStyle: 'compressed'
      }))
      .pipe(gulp.dest('./css/dist'));
});

gulp.task('scripts', function (cb) {
  runSequence('6to5', 'browserify', 'uglify', cb);
});
gulp.task('default', ['watch']);

package.json

{
  "name": "gulp-test",
  "version": "1.0.0",
  "description": "",
  "author": "Phil Hughes <me@iamphill.com>",
  "devDependencies": {
    "gulp": "^3.8.11",
    "gulp-6to5": "^3.0.0",
    "gulp-browserify": "^0.5.1",
    "gulp-rename": "^1.2.0",
    "gulp-sass": "^1.3.2",
    "gulp-uglify": "^1.1.0",
    "gulp-watch": "^4.1.1",
    "run-sequence": "^1.0.2"
  }
}