Update to ESLint 5 (#1025)

* Updates all dependencies to the latest available to pick up any
  ESLint 5 compatibility fixes (in the case of `babel-eslint` and
  `eslint-plugin-vue` this meant beta versions, so for those the
  tilde range has been changed to exact, pending the final versions).
* Raises `ecmaVersion` to `2018`.
* Removes all custom `ecmaFeatures` options since:
  - `impliedStrict` is redundant when using `sourceType: 'module'`
  - none of the others are recognised by latest ESLint/`babel-eslint`

Migration guide:
https://eslint.org/docs/user-guide/migrating-to-5.0.0

Docs to help with reviewing the `parserOptions` changes:
https://eslint.org/docs/user-guide/configuring#specifying-parser-options
https://github.com/babel/babel-eslint#configuration
https://eslint.org/docs/rules/strict#rule-details (for `impliedStrict`)

Fixes #383.
Closes #963.
Closes #1001.

Author: edmorley

package.json

@@ -36,9 +36,9 @@
   "devDependencies": {
     "auto-changelog": "^1.4.6",
     "ava": "^1.0.0-beta.4",
-    "eslint": "^4.19.1",
-    "eslint-config-prettier": "^3.0.0",
-    "eslint-plugin-prettier": "^2.6.0",
+    "eslint": "^5.4.0",
+    "eslint-config-prettier": "^3.0.1",
+    "eslint-plugin-prettier": "^2.6.2",
     "husky": "^0.14.3",
     "jest": "^23.0.0",
     "karma": "^3.0.0",

packages/airbnb-base/package.json

@@ -24,11 +24,11 @@
   },
   "dependencies": {
     "@neutrinojs/eslint": "9.0.0-0",
-    "eslint-config-airbnb-base": "^13.0.0",
-    "eslint-plugin-import": "^2.12.0"
+    "eslint-config-airbnb-base": "^13.1.0",
+    "eslint-plugin-import": "^2.14.0"
   },
   "peerDependencies": {
-    "eslint": "^4.0.0",
+    "eslint": "^5.0.0",
     "neutrino": "^9.0.0-0",
     "webpack": "^4.0.0"
   }

packages/airbnb/package.json

@@ -24,14 +24,14 @@
   },
   "dependencies": {
     "@neutrinojs/eslint": "9.0.0-0",
-    "eslint-config-airbnb": "^17.0.0",
-    "eslint-config-airbnb-base": "^13.0.0",
-    "eslint-plugin-import": "^2.12.0",
-    "eslint-plugin-jsx-a11y": "^6.0.3",
-    "eslint-plugin-react": "^7.9.1"
+    "eslint-config-airbnb": "^17.1.0",
+    "eslint-config-airbnb-base": "^13.1.0",
+    "eslint-plugin-import": "^2.14.0",
+    "eslint-plugin-jsx-a11y": "^6.1.1",
+    "eslint-plugin-react": "^7.11.1"
   },
   "peerDependencies": {
-    "eslint": "^4.0.0",
+    "eslint": "^5.0.0",
     "neutrino": "^9.0.0-0",
     "webpack": "^4.0.0"
   }

packages/create-project/commands/init/matrix.js

@@ -17,7 +17,7 @@ const AIRBNB = '@neutrinojs/airbnb';
 const AIRBNB_BASE = '@neutrinojs/airbnb-base';
 const STANDARDJS = '@neutrinojs/standardjs';
 
-const ESLINT = 'eslint@^4';
+const ESLINT = 'eslint@^5';
 const WEBPACK = 'webpack@^4';
 const WEBPACK_CLI = 'webpack-cli@^2';
 const WEBPACK_DEV_SERVER = 'webpack-dev-server@^3';

packages/eslint/README.md

@@ -52,13 +52,8 @@ neutrino.use(eslint, {
     envs: ['es6'],
     parser: 'babel-eslint',
     parserOptions: {
-      ecmaVersion: 2017,
-      sourceType: 'module',
-      ecmaFeatures: {
-        objectLiteralDuplicateProperties: false,
-        generators: true,
-        impliedStrict: true
-      }
+      ecmaVersion: 2018,
+      sourceType: 'module'
     },
     settings: {},
     globals: ['process'],

packages/eslint/index.js

@@ -98,13 +98,8 @@ module.exports = (neutrino, opts = {}) => {
       envs: ['es6'],
       parser: require.resolve('babel-eslint'),
       parserOptions: {
-        ecmaVersion: 2017,
-        sourceType: 'module',
-        ecmaFeatures: {
-          objectLiteralDuplicateProperties: false,
-          generators: true,
-          impliedStrict: true
-        }
+        ecmaVersion: 2018,
+        sourceType: 'module'
       },
       settings: {},
       globals: ['process'],

packages/eslint/package.json

@@ -23,16 +23,16 @@
     "yarn": ">=1.2.1"
   },
   "dependencies": {
-    "babel-eslint": "^8.2.3",
+    "babel-eslint": "9.0.0-beta.3",
     "debug": "^3.1.0",
     "deepmerge": "^1.5.2",
-    "eslint-loader": "^2.0.0",
+    "eslint-loader": "^2.1.0",
     "eslint-plugin-babel": "^5.1.0",
     "lodash.clonedeep": "^4.5.0",
     "lodash.omit": "^4.5.0"
   },
   "peerDependencies": {
-    "eslint": "^4.0.0",
+    "eslint": "^5.0.0",
     "neutrino": "^9.0.0-0",
     "webpack": "^4.0.0"
   }

packages/jest/package.json

@@ -27,7 +27,7 @@
     "@neutrinojs/compile-loader": "9.0.0-0",
     "@neutrinojs/loader-merge": "9.0.0-0",
     "babel-plugin-jest-hoist": "^23.0.0",
-    "eslint-plugin-jest": "^21.15.1",
+    "eslint-plugin-jest": "^21.21.0",
     "lodash.omit": "^4.5.0"
   },
   "peerDependencies": {

packages/react/package.json

@@ -31,7 +31,7 @@
     "@neutrinojs/loader-merge": "9.0.0-0",
     "@neutrinojs/web": "9.0.0-0",
     "deepmerge": "^1.5.2",
-    "eslint-plugin-react": "^7.9.1"
+    "eslint-plugin-react": "^7.11.1"
   },
   "devDependencies": {
     "react": "*",

packages/standardjs/package.json

@@ -27,14 +27,14 @@
     "@neutrinojs/eslint": "9.0.0-0",
     "eslint-config-standard": "^11.0.0",
     "eslint-config-standard-jsx": "^5.0.0",
-    "eslint-plugin-import": "^2.12.0",
-    "eslint-plugin-node": "^6.0.1",
+    "eslint-plugin-import": "^2.14.0",
+    "eslint-plugin-node": "^7.0.1",
     "eslint-plugin-promise": "^4.0.0",
-    "eslint-plugin-react": "^7.9.1",
+    "eslint-plugin-react": "^7.11.1",
     "eslint-plugin-standard": "^3.1.0"
   },
   "peerDependencies": {
-    "eslint": "^4.0.0",
+    "eslint": "^5.0.0",
     "neutrino": "^9.0.0-0"
   }
 }

packages/vue/package.json

@@ -25,8 +25,8 @@
     "@neutrinojs/web": "9.0.0-0",
     "css-loader": "^1.0.0",
     "deepmerge": "^1.5.2",
-    "eslint-plugin-react": "^7.9.1",
-    "eslint-plugin-vue": "^4.5.0",
+    "eslint-plugin-react": "^7.11.1",
+    "eslint-plugin-vue": "5.0.0-beta.3",
     "stylelint-processor-html": "^1.0.0",
     "vue-loader": "^15.0.0",
     "vue-style-loader": "^4.1.0",