ESLint 4 (#2735)

* Update eslint-loader 1.7.1 -> 1.9.0

* Add eslintPath option

* Update eslint 3.19.0 -> 4.1.1

* Update peer dependencies

* Move eslintPath config to outside @remove-on-eject

packages/eslint-config-react-app/package.json

@@ -12,7 +12,7 @@
   ],
   "peerDependencies": {
     "babel-eslint": "^7.2.3",
-    "eslint": "^3.19.0",
+    "eslint": "^4.1.1",
     "eslint-plugin-flowtype": "^2.33.0",
     "eslint-plugin-import": "^2.2.0",
     "eslint-plugin-jsx-a11y": "^5.0.3",

packages/react-scripts/config/webpack.config.dev.js

@@ -136,6 +136,7 @@ module.exports = {
           {
             options: {
               formatter: eslintFormatter,
+              eslintPath: require.resolve('eslint'),
               // @remove-on-eject-begin
               baseConfig: {
                 extends: [require.resolve('eslint-config-react-app')],

packages/react-scripts/config/webpack.config.prod.js

@@ -136,6 +136,7 @@ module.exports = {
           {
             options: {
               formatter: eslintFormatter,
+              eslintPath: require.resolve('eslint'),
               // @remove-on-eject-begin
               // TODO: consider separate config for production,
               // e.g. to enable no-console and no-debugger only in production.

packages/react-scripts/package.json

@@ -32,12 +32,12 @@
     "chalk": "1.1.3",
     "css-loader": "0.28.4",
     "dotenv": "4.0.0",
-    "eslint": "3.19.0",
+    "eslint": "4.1.1",
     "eslint-config-react-app": "^1.0.5",
-    "eslint-loader": "1.7.1",
+    "eslint-loader": "1.9.0",
     "eslint-plugin-flowtype": "2.34.0",
-    "eslint-plugin-import": "2.2.0",
-    "eslint-plugin-jsx-a11y": "5.0.3",
+    "eslint-plugin-import": "2.7.0",
+    "eslint-plugin-jsx-a11y": "5.1.1",
     "eslint-plugin-react": "7.1.0",
     "extract-text-webpack-plugin": "2.1.2",
     "file-loader": "0.11.2",