Use different coding style for Gruntfile

Fixes #12657

CONTRIBUTING.md

@@ -178,7 +178,7 @@ license your work under the terms of the [MIT License](LICENSE.md).
 
 ### JS
 
-- No semicolons
+- No semicolons (in client-side JS)
 - 2 spaces (no tabs)
 - strict mode
 - "Attractive"

Gruntfile.js

@@ -45,7 +45,7 @@ module.exports = function (grunt) {
       },
       grunt: {
         options: {
-          node: true
+          jshintrc: 'grunt/.jshintrc'
         },
         src: ['Gruntfile.js', 'grunt/*.js']
       },

grunt/.jshintrc

+{
+  "asi": false,
+  "camelcase": true,
+  "curly": true,
+  "eqeqeq": true,
+  "immed": true,
+  "indent": 2,
+  "newcap": true,
+  "noarg": true,
+  "nonbsp": true,
+  "quotmark": "single",
+  "undef": true,
+  "strict": true,
+  "trailing": true,
+  "node" : true
+}

grunt/bs-glyphicons-data-generator.js

@@ -4,29 +4,31 @@
  * Copyright 2014 Twitter, Inc.
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  */
-
-var fs = require('fs')
+'use strict';
+var fs = require('fs');
 
 module.exports = function generateGlyphiconsData() {
   // Pass encoding, utf8, so `readFileSync` will return a string instead of a
   // buffer
-  var glyphiconsFile = fs.readFileSync('less/glyphicons.less', 'utf8')
-  var glpyhiconsLines = glyphiconsFile.split('\n')
+  var glyphiconsFile = fs.readFileSync('less/glyphicons.less', 'utf8');
+  var glpyhiconsLines = glyphiconsFile.split('\n');
 
   // Use any line that starts with ".glyphicon-" and capture the class name
-  var iconClassName = /^\.(glyphicon-[^\s]+)/
+  var iconClassName = /^\.(glyphicon-[^\s]+)/;
   var glyphiconsData = '# This file is generated via Grunt task. **Do not edit directly.** \n' +
                        '# See the \'build-glyphicons-data\' task in Gruntfile.js.\n\n';
   for (var i = 0, len = glpyhiconsLines.length; i < len; i++) {
-    var match = glpyhiconsLines[i].match(iconClassName)
+    var match = glpyhiconsLines[i].match(iconClassName);
 
-    if (match != null) {
-      glyphiconsData += '- ' + match[1] + '\n'
+    if (match !== null) {
+      glyphiconsData += '- ' + match[1] + '\n';
     }
   }
 
   // Create the `_data` directory if it doesn't already exist
-  if (!fs.existsSync('docs/_data')) fs.mkdirSync('docs/_data')
+  if (!fs.existsSync('docs/_data')) {
+    fs.mkdirSync('docs/_data');
+  }
 
-  fs.writeFileSync('docs/_data/glyphicons.yml', glyphiconsData)
-}
+  fs.writeFileSync('docs/_data/glyphicons.yml', glyphiconsData);
+};

grunt/bs-lessdoc-parser.js

@@ -4,6 +4,7 @@
  * Copyright 2014 Twitter, Inc.
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  */
+'use strict';
 
 var markdown = require('markdown').markdown;
 

grunt/bs-raw-files-generator.js

 /* global btoa: true */
-
 /*!
  * Bootstrap Grunt task for generating raw-files.min.js for the Customizer
  * http://getbootstrap.com
  * Copyright 2014 Twitter, Inc.
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  */
-
-var btoa = require('btoa')
-var fs = require('fs')
+'use strict';
+var btoa = require('btoa');
+var fs = require('fs');
 
 function getFiles(type) {
-  var files = {}
+  var files = {};
   fs.readdirSync(type)
     .filter(function (path) {
-      return type == 'fonts' ? true : new RegExp('\\.' + type + '$').test(path)
+      return type === 'fonts' ? true : new RegExp('\\.' + type + '$').test(path);
     })
     .forEach(function (path) {
-      var fullPath = type + '/' + path
-      return files[path] = (type == 'fonts' ? btoa(fs.readFileSync(fullPath)) : fs.readFileSync(fullPath, 'utf8'))
-    })
-  return 'var __' + type + ' = ' + JSON.stringify(files) + '\n'
+      var fullPath = type + '/' + path;
+      files[path] = (type === 'fonts' ? btoa(fs.readFileSync(fullPath)) : fs.readFileSync(fullPath, 'utf8'));
+    });
+  return 'var __' + type + ' = ' + JSON.stringify(files) + '\n';
 }
 
 module.exports = function generateRawFilesJs(banner) {
   if (!banner) {
-    banner = ''
+    banner = '';
   }
-  var files = banner + getFiles('js') + getFiles('less') + getFiles('fonts')
-  fs.writeFileSync('docs/assets/js/raw-files.min.js', files)
-}
+  var files = banner + getFiles('js') + getFiles('less') + getFiles('fonts');
+  fs.writeFileSync('docs/assets/js/raw-files.min.js', files);
+};

grunt/shrinkwrap.js

@@ -8,7 +8,7 @@
 This Grunt task updates the npm-shrinkwrap.canonical.json file that's used as the key for Bootstrap's npm packages cache.
 This task should be run and the updated file should be committed whenever Bootstrap's dependencies change.
 */
-
+'use strict';
 var canonicallyJsonStringify = require('canonical-json');
 var NON_CANONICAL_FILE = 'npm-shrinkwrap.json';
 var DEST_FILE = 'test-infra/npm-shrinkwrap.canonical.json';