Simple SASS compile/watch Gulp tasks

gulpfile.js

const  gulp  = require('gulp');

/**
   * build css
   */

const sass = require('gulp-sass');
const browserSync = require('browser-sync').create();

function compileCss(cb){

    cb();

    let buildRet = gulp.src('./scss/mystyles.scss')
    .pipe(sass().on('error', sass.logError))
    .pipe(cleanCSS())
    .pipe(gulp.dest('./css'))
    .pipe(browserSync.stream());

    
    return buildRet;
}

/**
 * observes for changes on the .scss file, and compiles 
 */
function watch() {
    gulp.watch('./scss/mystyles.scss', compileCss)
}

exports.watch = watch;