[WIP] chore(*): switch from JSHint/JSCS to ESLint

Author: mgol

.eslintignore

@@ -0,0 +1,7 @@
+bower_components/**
+build/**
+docs/bower_components/**
+node_modules/**
+lib/htmlparser/**
+src/ngParseExt/ucd.js
+tmp/**

.eslintrc.json

@@ -0,0 +1,136 @@
+{
+  "root": true,
+
+  "env": {
+    "node": true
+  },
+
+  "globals": {},
+
+  "rules": {
+    // Rules are divided into sections from http://eslint.org/docs/rules/
+
+    // Possible errors
+    "comma-dangle": ["error", "never"],
+    "no-cond-assign": ["error", "except-parens"],
+    "no-constant-condition": "error",
+    "no-control-regex": "error",
+    "no-debugger": "error",
+    "no-dupe-args": "error",
+    "no-dupe-keys": "error",
+    "no-duplicate-case": "error",
+    "no-empty-character-class": "error",
+    "no-empty": "error",
+    "no-ex-assign": "error",
+    "no-extra-boolean-cast": "error",
+    "no-extra-semi": "error",
+    "no-func-assign": "error",
+    "no-inner-declarations": "error",
+    "no-invalid-regexp": "error",
+    "no-irregular-whitespace": "error",
+    "no-negated-in-lhs": "error",
+    "no-obj-calls": "error",
+    "no-regex-spaces": "error",
+    "no-sparse-arrays": "error",
+    "no-unreachable": "error",
+    "use-isnan": "error",
+    "no-unsafe-finally": "error",
+    "valid-typeof": "error",
+    "no-unexpected-multiline": "error",
+
+    // Best practices
+    "accessor-pairs": "error",
+    "array-callback-return": "error",
+    "complexity": ["warn", 10],
+//    "dot-notation": "error", // TODO enable?
+//    "dot-location": ["error", "property"], // TODO enable?
+    "eqeqeq": ["error", "allow-null"],
+    "no-alert": "error",
+    "no-caller": "error",
+    "no-case-declarations": "error",
+    "no-eval": "error",
+    "no-extend-native": "error",
+    "no-extra-bind": "error",
+    "no-extra-label": "error",
+    "no-fallthrough": "error",
+    "no-floating-decimal": "error",
+    "no-implied-eval": "error",
+    "no-invalid-this": "error",
+    "no-iterator": "error",
+    "no-multi-str": "error",
+    "no-new-func": "error",
+    "no-new-wrappers": "error",
+    "no-new": "error",
+    "no-octal-escape": "error",
+    "no-octal": "error",
+    "no-proto": "error",
+    "no-redeclare": "error",
+    "no-return-assign": "error",
+    "no-script-url": "error",
+    "no-self-assign": "error",
+    "no-self-compare": "error",
+    "no-sequences": "error",
+    "no-throw-literal": "error",
+    "no-unmodified-loop-condition": "error",
+    "no-unused-expressions": "error",
+    "no-unused-labels": "error",
+    "no-useless-call": "error",
+    "no-useless-concat": "error",
+    "no-useless-escape": "error",
+    "no-void": "error",
+    "no-with": "error",
+    "radix": "error",
+    "wrap-iife": ["error", "inside"],
+
+    // Strict mode
+    "strict": ["error", "global"],
+
+    // Variables
+    "no-delete-var": "error",
+    "no-label-var": "error",
+    "no-restricted-globals": ["error", "event"],
+    "no-shadow-restricted-names": "error",
+    "no-undef-init": "error",
+    "no-undef": "error",
+    "no-unused-vars": ["error", { "vars": "local", "args": "none" }],
+
+    // Node.js
+    "handle-callback-err": "error",
+
+    // Stylistic issues
+    "array-bracket-spacing": ["error", "never"],
+//    "block-spacing": ["error", "always"], // TODO enable?
+    "brace-style": ["error", "1tbs", { "allowSingleLine": true }],
+//    "comma-spacing": "error", // TODO enable?
+    "comma-style": ["error", "last"],
+    "eol-last": "error",
+//    "id-blacklist": ["error", "event"], // TODO enable?
+//    "indent": ["error", 2], // TODO enable?
+//    "key-spacing": ["error", { "beforeColon": false, "afterColon": true, "mode": "minimum" }], // TODO enable?
+    "keyword-spacing": "error",
+    "linebreak-style": ["error", "unix"],
+    "max-len": ["error", { "code": 200, "ignoreComments": true, "ignoreUrls": true }],
+    "new-cap": "error",
+    "new-parens": "error",
+    "no-array-constructor": "error",
+    "no-bitwise": "error",
+    "no-mixed-spaces-and-tabs": "error",
+    "no-multiple-empty-lines": ["error", { "max": 3, "maxEOF": 1 }],
+    "no-whitespace-before-property": "error",
+    "no-spaced-func": "error",
+    "no-trailing-spaces": "error",
+    "no-unneeded-ternary": "error",
+//    "object-curly-spacing": ["error", "never"], // TODO enable?
+//    "object-property-newline": ["error", { "allowMultiplePropertiesPerLine": true }], // TODO enable?
+//    "operator-linebreak": ["error", "after", { "overrides": { "?": "before", ":": "before" }}], // TODO enable?
+//    "quotes": ["error", "single"], // TODO enable?
+    "semi-spacing": "error",
+    "semi": "error",
+    "space-before-blocks": ["error", "always"],
+    "space-before-function-paren": ["error", "never"],
+    "space-in-parens": ["error", "never"],
+    "space-infix-ops": "error",
+    "space-unary-ops": ["error", { "words": true, "nonwords": false }],
+    "unicode-bom": ["error", "never"]
+  }
+}

.jscsrc

@@ -18,7 +18,7 @@ module.exports = function(grunt) {
 
   var NG_VERSION = versionInfo.currentVersion;
   NG_VERSION.cdn = versionInfo.cdnVersion;
-  var dist = 'angular-'+ NG_VERSION.full;
+  var dist = 'angular-' + NG_VERSION.full;
 
   if (versionInfo.cdnVersion == null) {
     throw new Error('Unable to read CDN version, are you offline or has the CDN not been properly pushed?');
@@ -41,7 +41,7 @@ module.exports = function(grunt) {
           hostname: '0.0.0.0',
           base: '.',
           keepalive: true,
-          middleware: function(connect, options){
+          middleware: function(connect, options) {
             var base = Array.isArray(options.base) ? options.base[options.base.length - 1] : options.base;
             return [
               util.conditionalCsp(),
@@ -61,7 +61,7 @@ module.exports = function(grunt) {
           // to avoid https://github.com/joyent/libuv/issues/826
           port: 8000,
           hostname: '0.0.0.0',
-          middleware: function(connect, options){
+          middleware: function(connect, options) {
             var base = Array.isArray(options.base) ? options.base[options.base.length - 1] : options.base;
             return [
               function(req, resp, next) {
@@ -115,68 +115,13 @@ module.exports = function(grunt) {
       tmp: ['tmp']
     },
 
-    jshint: {
-      options: {
-        jshintrc: true,
-      },
-      node: {
-        files: { src: ['*.js', 'lib/**/*.js'] },
-      },
-      tests: {
-        files: { src: 'test/**/*.js' },
-      },
-      ng: {
-        files: { src: files['angularSrc'].concat('!src/angular.bind.js') },
-      },
-      ngAnimate: {
-        files: { src: 'src/ngAnimate/**/*.js' },
-      },
-      ngCookies: {
-        files: { src: 'src/ngCookies/**/*.js' },
-      },
-      ngLocale: {
-        files: { src: 'src/ngLocale/**/*.js' },
-      },
-      ngMessageFormat: {
-        files: { src: 'src/ngMessageFormat/**/*.js' },
-      },
-      ngMessages: {
-        files: { src: 'src/ngMessages/**/*.js' },
-      },
-      ngMock: {
-        files: { src: 'src/ngMock/**/*.js' },
-      },
-      ngParseExt: {
-        files: { src: 'src/ngParseExt/**/*.js' },
-      },
-      ngResource: {
-        files: { src: 'src/ngResource/**/*.js' },
-      },
-      ngRoute: {
-        files: { src: 'src/ngRoute/**/*.js' },
-      },
-      ngSanitize: {
-        files: { src: 'src/ngSanitize/**/*.js' },
-      },
-      ngScenario: {
-        files: { src: 'src/ngScenario/**/*.js' },
-      },
-      ngTouch: {
-        files: { src: 'src/ngTouch/**/*.js' },
-      },
-      ngAria: {
-        files: {src: 'src/ngAria/**/*.js'},
-      }
-    },
-
-    jscs: {
-      src: [
-        'src/**/*.js',
-        'test/**/*.js',
-        '!src/angular.bind.js' // we ignore this file since contains an early return statement
-      ],
-      options: {
-        config: '.jscsrc'
+    eslint: {
+      all: {
+        src: [
+          '*.js',
+          'src/**/*.js',
+          'test/**/*.js'
+        ]
       }
     },
 
@@ -318,7 +263,7 @@ module.exports = function(grunt) {
 
     compress: {
       build: {
-        options: {archive: 'build/' + dist +'.zip', mode: 'zip'},
+        options: {archive: 'build/' + dist + '.zip', mode: 'zip'},
         src: ['**'],
         cwd: 'build',
         expand: true,
@@ -366,7 +311,7 @@ module.exports = function(grunt) {
 
 
   //alias tasks
-  grunt.registerTask('test', 'Run unit, docs and e2e tests with Karma', ['jshint', 'jscs', 'package', 'test:unit', 'test:promises-aplus', 'tests:docs', 'test:protractor']);
+  grunt.registerTask('test', 'Run unit, docs and e2e tests with Karma', ['eslint', 'package', 'test:unit', 'test:promises-aplus', 'tests:docs', 'test:protractor']);
   grunt.registerTask('test:jqlite', 'Run the unit tests with Karma' , ['tests:jqlite']);
   grunt.registerTask('test:jquery', 'Run the jQuery (latest) unit tests with Karma', ['tests:jquery']);
   grunt.registerTask('test:jquery-2.2', 'Run the jQuery 2.2 unit tests with Karma', ['tests:jquery-2.2']);
@@ -383,6 +328,6 @@ module.exports = function(grunt) {
   grunt.registerTask('minify', ['bower', 'clean', 'build', 'minall']);
   grunt.registerTask('webserver', ['connect:devserver']);
   grunt.registerTask('package', ['bower', 'validate-angular-files', 'clean', 'buildall', 'minall', 'collect-errors', 'docs', 'copy', 'write', 'compress']);
-  grunt.registerTask('ci-checks', ['ddescribe-iit', 'merge-conflict', 'jshint', 'jscs']);
+  grunt.registerTask('ci-checks', ['ddescribe-iit', 'merge-conflict', 'eslint']);
   grunt.registerTask('default', ['package']);
 };

.jshintignore

@@ -244,10 +244,10 @@ var angularFiles = {
   ]
 };
 
-['2.1', '2.2'].forEach(function (jQueryVersion) {
+['2.1', '2.2'].forEach(function(jQueryVersion) {
   angularFiles['karmaJquery' + jQueryVersion] = []
     .concat(angularFiles.karmaJquery)
-    .map(function (path) {
+    .map(function(path) {
       if (path.startsWith('bower_components/jquery')) {
         return path.replace(/^bower_components\/jquery/, 'bower_components/jquery-' + jQueryVersion);
       }
@@ -276,7 +276,7 @@ if (exports) {
     Array.prototype.slice.call(arguments, 0).forEach(function(filegroup) {
       angularFiles[filegroup].forEach(function(file) {
         // replace @ref
-        var match = file.match(/^\@(.*)/);
+        var match = file.match(/^@(.*)/);
         if (match) {
           files = files.concat(angularFiles[match[1]]);
         } else {