Bump shelljs and gulp-eslint (#356)

* Bump shelljs and gulp-eslint

Removes [shelljs](https://github.com/shelljs/shelljs). It's no longer used after updating ancestor dependency [gulp-eslint](https://github.com/adametry/gulp-eslint). These dependencies need to be updated together.


Removes `shelljs`

Updates `gulp-eslint` from 3.0.1 to 6.0.0
- [Release notes](https://github.com/adametry/gulp-eslint/releases)
- [Changelog](https://github.com/adametry/gulp-eslint/blob/master/CHANGELOG.md)
- [Commits](adametry/gulp-eslint@v3.0.1...v6.0.0)

---
updated-dependencies:
- dependency-name: shelljs
  dependency-type: indirect
- dependency-name: gulp-eslint
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

* chore: Updated dependency gulp-eslint

Removes babel dependencies

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Yann イーベス Eves <hello@yanneves.com>

.eslintrc

@@ -1,5 +1,4 @@
 {
-  "parser": "babel-eslint",
   "extends": "eslint:recommended",
   "rules": {
     "no-unused-vars": 0,

_assets/scripts/lanyrd.js

@@ -5,7 +5,7 @@
  *  Released under the MIT License
  *  More Information: https://github.com/dharmafly/lanyrd.js
  */
-(function( _lanyrd, jQuery, module, undefined ) {
+(function( _lanyrd, jQuery, module ) {
     "use strict";
 
     var config, utils, lanyrd, parseUrl;
@@ -32,7 +32,7 @@
               }
             } else {
               for ( index in items ) {
-                if ( items.hasOwnProperty( index ) ) {
+                if ( Object.prototype.hasOwnProperty.call( items, index ) ) {
                   item = items[ index ];
                   fn.call( context || item, item, index, items );
                 }
@@ -80,7 +80,7 @@
             for ( ; index < count; index += 1 ) {
               object = objects[ index ];
               for ( property in object ) {
-                if ( object.hasOwnProperty( property ) ) {
+                if ( Object.prototype.hasOwnProperty.call( object, property ) ) {
                   target[ property ] = object[ property ];
                 }
               }
@@ -189,7 +189,7 @@
             while ( object && keys.length ) {
               key = keys.shift();
 
-              if ( object.hasOwnProperty( key ) || (prototype === true && object[ key ] !== undefined) ) {
+              if ( Object.prototype.hasOwnProperty.call( object, key ) || (prototype === true && object[ key ] !== undefined) ) {
                 object = object[ key ];
 
                 if ( keys.length === 0 && object !== undefined ) {
@@ -614,13 +614,10 @@
 
     // _.each
     var breaker = {},
-        AP = Array.prototype,
-        OP = Object.prototype,
-
-        hasOwn = OP.hasOwnProperty,
-        toString = OP.toString,
-        forEach = AP.forEach,
-        slice = AP.slice;
+        hasOwn = Object.prototype.hasOwnProperty,
+        toString = Object.prototype.toString,
+        forEach = Array.prototype.forEach,
+        slice = Array.prototype.slice;
 
     var _each = function( obj, iterator, context ) {
       var key, i, l;

_assets/scripts/main.js

@@ -70,7 +70,7 @@ if ( document.querySelectorAll ) {
     function setupLanyrd( lanyrd ) {
       var event, target, url, container, upcoming, eventUrlRegex;
 
-      eventUrlRegex = /^\s*https?:\/\/(?:www.)?lanyrd.com\/\d{4}\/[a-z0-9\-]+\/\s*$/;
+      eventUrlRegex = /^\s*https?:\/\/(?:www.)?lanyrd.com\/\d{4}\/[a-z0-9-]+\/\s*$/;
       event = document.querySelector( ".event-detail" );
       if ( event ) {
         target = event.querySelector( ".lanyrd-link" );

_tasks/assets/scripts.js

@@ -4,7 +4,6 @@ const path = require('path')
 const gulp = require('gulp')
 const eslint = require('gulp-eslint')
 const jscs = require('gulp-jscs')
-const babel = require('gulp-babel')
 const uglify = require('gulp-uglify')
 const sourcemaps = require('gulp-sourcemaps')
 
@@ -27,7 +26,6 @@ function buildScripts(cb) {
 
   gulp.src(scripts.glob)
     .pipe(sourcemaps.init())
-    // .pipe(babel())
     .pipe(uglify())
     .pipe(sourcemaps.write('.'))
     .pipe(gulp.dest(path.join(dist.dir, 'js/')))

_tasks/assets/styles.js

@@ -4,30 +4,19 @@ const path = require('path')
 const gulp = require('gulp')
 const sass = require('gulp-sass')(require('sass'))
 const autoprefixer = require('gulp-autoprefixer')
-const scsslint = require('gulp-scss-lint')
-// const uncss = require('gulp-uncss')
 const cssnano = require('gulp-cssnano')
 const sourcemaps = require('gulp-sourcemaps')
 const { styles, dist } = require('../../paths.json')
 
-function lintStyles() {
-
-  return gulp.src(styles.glob)
-    .pipe(scsslint())
-    .pipe(scsslint.failReporter())
-}
-
 function buildStyles() {
 
   return gulp.src(styles.glob)
     .pipe(sourcemaps.init())
     .pipe(sass().on('error', sass.logError))
     .pipe(autoprefixer({ browsers: ['> 1%'], cascade: false }))
-    // .pipe(uncss({ html: [path.join(dist.dir, '**/*.html')] }))
     .pipe(cssnano())
     .pipe(sourcemaps.write('.'))
     .pipe(gulp.dest(path.join(dist.dir, 'css/')))
 }
 
-// module.exports = gulp.series([lintStyles, buildStyles])
 module.exports = gulp.series(buildStyles)