Update eslint to the latest version 🚀

.travis.yml

@@ -1,5 +1,5 @@
 language: node_js
 node_js:
-  - 5
   - 6
+  - 8
 script: npm run lint && npm run validate && npm test

base.js

@@ -136,7 +136,6 @@ module.exports = {
     'no-useless-computed-key': 2,
     'no-mixed-operators': 2,
     'rest-spread-spacing': [2, 'never'],
-    'lines-around-directive': [2, 'always'],
     'no-useless-return': 2,
     'no-return-await': 2,
     'require-await': 2,
@@ -148,6 +147,22 @@ module.exports = {
     'no-compare-neg-zero': 2,
     'nonblock-statement-body-position': 2,
 
+    // eslint v4 rules
+    // TODO: this might be worth looking at again if there's an option so that
+    // if theres any newline, require all newlines. Currently the newline option
+    // applies to an element in the array containing newlines.
+    // 'array-element-newline': [2, {multiline: true}],
+    'semi-style': [2, 'last'],
+    'switch-colon-spacing': 2,
+    'array-bracket-newline': ['error', {multiline: true}],
+    'no-buffer-constructor': 2,
+    'padding-line-between-statements': [
+      2,
+      // These take the place of the deprected lines-around-directive
+      {blankLine: 'always', prev: 'directive', next: '*'},
+      {blankLine: 'any', prev: 'directive', next: 'directive'}
+    ],
+
     // Promise
     'promise/catch-or-return': 2,
     'promise/no-return-wrap': 2,

package.json

@@ -9,15 +9,13 @@
   "dependencies": {},
   "devDependencies": {
     "babel-eslint": "^7.2.3",
-    "babel-preset-es2015": "^6.24.1",
-    "babel-tape-runner": "^2.0.1",
-    "eslint": "^3.19.0",
-    "eslint-import-resolver-webpack": "^0.8.1",
+    "eslint": "^4.0.0",
+    "eslint-import-resolver-webpack": "^0.8.3",
     "eslint-plugin-babel": "^4.1.1",
     "eslint-plugin-classes": "^0.1.1",
-    "eslint-plugin-import": "^2.2.0",
+    "eslint-plugin-import": "^2.6.0",
     "eslint-plugin-promise": "^3.5.0",
-    "eslint-plugin-react": "^7.0.0",
+    "eslint-plugin-react": "^7.1.0",
     "espree": "^3.4.3",
     "git-validate": "^2.2.2",
     "greenkeeper-postpublish": "^1.0.1",
@@ -33,7 +31,7 @@
   "license": "MIT",
   "main": "index.js",
   "peerDependencies": {
-    "eslint": "^3.5.0"
+    "eslint": "^4.0.0"
   },
   "pre-commit": [
     "validate",
@@ -47,7 +45,7 @@
   "scripts": {
     "lint": "eslint -c index.js .",
     "postpublish": "greenkeeper-postpublish",
-    "test": "babel-tape-runner test/*.js",
+    "test": "tape test/*.js",
     "validate": "npm ls >/dev/null"
   }
 }

test/basic.js

@@ -1,9 +1,9 @@
 'use strict';
 
-import test from 'tape';
-import config from '../index.js'; // eslint-disable-line import/default
-import configNoBabel from '../no-babel.js'; // eslint-disable-line import/default
-import configBase from '../base.js'; // eslint-disable-line import/default
+const test = require('tape');
+const config = require('../index.js');
+const configNoBabel = require('../no-babel.js');
+const configBase = require('../base.js');
 
 const isObject = (obj) => typeof obj === 'object' && obj !== null;
 const isString = (obj) => typeof obj === 'string';

test/validate-config.js

@@ -1,7 +1,7 @@
 'use strict';
 
-import test from 'tape';
-import {CLIEngine} from 'eslint';
+const test = require('tape');
+const {CLIEngine} = require('eslint');
 
 const code = `
 'use strict';
@@ -28,7 +28,10 @@ t(bar);
 test('load config in eslint to validate all rule syntax is correct', (t) => {
   const {results, errorCount, warningCount} = new CLIEngine({
     useEslintrc: false,
-    configFile: 'index.js'
+    configFile: 'index.js',
+    parserOptions: {
+      sourceType: 'module'
+    }
   }).executeOnText(code);
 
   t.equal(results.length, 1, 'One result (empty)');