Craft cms gulpfile

gulpfile.js

var gulp = require('gulp'),
    sass = require('gulp-sass'),
    sourcemaps = require('gulp-sourcemaps'),
    browserSync = require('browser-sync').create(),
    autoprefixer = require('gulp-autoprefixer'),
    minify = require('gulp-minify-css'),
    uglify = require('gulp-uglify'),
    concat = require('gulp-concat'),
    rename = require('gulp-rename');

gulp.task('build-css', function() {

  gulp.src('./scss/main.scss')
    .pipe(sourcemaps.init())
    .pipe(sass().on('error', sass.logError))
    .pipe(autoprefixer({
      browsers: ['last 25 versions']
    }))
    .pipe(minify())
    .pipe(rename({suffix: '.min'}))
    .pipe(sourcemaps.write('.'))
    .pipe(gulp.dest('./css'))
    .pipe(browserSync.stream());

});

gulp.task('build-js', function() {

  gulp.src('./js/*.js')
    .pipe(concat('scripts.js'))
    .pipe(gulp.dest('./js/min'))
    .pipe(rename({suffix: '.min'}))
    .pipe(uglify())
    .pipe(gulp.dest('./js/min'));

});

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

  browserSync.init({
    proxy: 'localhost'
  });

})

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

  gulp.watch('./scss/**/*.scss', ['build-css']);
  gulp.watch(['../craft/templates/**/*.html', './js/main.js']).on('change', browserSync.reload);

})

gulp.task('default', ['build-css', 'serve', 'watch']);

gulp.task('build', ['build-css', 'build-js']);

package.json

{
  "name": "craft-cms-gulpfile",
  "version": "1.0.0",
  "description": "Craft CMS gulpfile.",
  "main": "gulpfile.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "repository": {
    "type": "git",
    "url": "git+https://gist.github.com/1fd97539ae1cb344ed92.git"
  },
  "author": "Darren Jaworski <[email protected]>",
  "license": "MIT",
  "bugs": {
    "url": "https://gist.github.com/1fd97539ae1cb344ed92"
  },
  "homepage": "https://gist.github.com/1fd97539ae1cb344ed92",
  "dependencies": {
    "browser-sync": "^2.9.11",
    "gulp": "^3.9.0",
    "gulp-autoprefixer": "^3.1.0",
    "gulp-minify-css": "^1.2.1",
    "gulp-rename": "^1.2.2",
    "gulp-sass": "^2.1.0",
    "gulp-sourcemaps": "^1.6.0"
  }
}

Hey this looks cool, thanks for sharing!
Do you use MAMP? And what URL are you running your Craft install on? We're still using the project-name.dev kind of URLs while we test in Craft Pro.
I ask because I'm having trouble getting BrowserSync to work. Can see the front end at localhost:3001, but can't login on the same URL due to CORS, and our site requires the user to be logged in.. :/