Flex Gulpfile

// Include gulp
var gulp = require('gulp');

// Include plugins
var nib = require ('nib'); //addon for stylus
var data = require('gulp-data'); //required for stylus
var stylus = require('gulp-stylus');
var browserSync = require('browser-sync').create();
var concat = require('gulp-concat');
var uglifycss = require('gulp-uglifycss');
var sass = require('gulp-sass');
// var koutoSwiss = require( "kouto-swiss" );


// Setup Tasks


// Stylus
gulp.task('stylus', function () {
   var stream =  gulp.src(['stylus/**.styl', '!stylus/_*.styl'])
       .pipe(stylus({
           compress: true,
           use: nib()
    }))
    .on('error', onError)
    .pipe(gulp.dest('css'));
    return stream;
});

// Sass / Scss
gulp.task('sass', function () {
  return gulp.src(['sass/**/*.scss', '!sass/**/_*.scss'])
    .pipe(sass.sync().on('error', sass.logError))
    .pipe(gulp.dest('css'));
});



// Concatinating CSS
gulp.task('concat',['stylus'], function(cb) {
  var stream = gulp.src(["css/**.css",
   "!css/app.css",
   "!css/foundation.css",
   "!css/foundation.min.css",
   "!css/master.css",
   "css/global.css"])
  .pipe(concat('master.css'))
  .pipe(gulp.dest('css'));
  return stream;
});



// Uglify CSS
gulp.task('uglifycss',['concat'], function () {
   var stream = gulp.src('css/master.css')
    .pipe(uglifycss({
      "maxLineLen": 80,
      "uglyComments": true,
    }))
    .pipe(gulp.dest('css'));
    return stream;
});



//Browser Sync setup
// Static server

var PHPFiles = './*.php'; // Path to all PHP files.
var reload = browserSync.reload; // For manual browser reload.

gulp.task('browser-sync', function() {
    browserSync.init({
        proxy: "localhost/flex/"
    });
    gulp.watch(['stylus/*.styl','sass/**/*.scss','./*.html', 'gulpfile.js'], ['processCSS']).on('change', browserSync.reload);
    // gulp.watch('./*.html').on('change', browserSync.reload);
    gulp.watch(PHPFiles, reload); //Reloads on PHP changes
});

// Run tasks
gulp.task('default', ['stylus','sass','concat','uglifycss','browser-sync']);
gulp.task('processCSS', ['stylus','sass','concat','uglifycss']);


// Error handling
function onError(err) {
  console.log(err);
  this.emit('end');
}