Merge pull request #11 from Brightspace/eslint-4

upgrading to eslint 4 from 2 and improving how we extend configurations

browser-config.js

@@ -1,10 +1,6 @@
-var baseConfig = require('./index'),
-	extend = require('extend');
-
-var browserConfig = {
+module.exports = {
+  "extends": "./index.js",
   "env": {
     "browser": true
   }
 };
-
-module.exports = extend(true, baseConfig, browserConfig);

index.js

@@ -1,7 +1,3 @@
-var eslint = require('eslint'),
-	extend = require('extend'),
-	commonConfig = require('./common-config');
-
-var recommendedConfig = eslint.linter.defaults();
-
-module.exports = extend(true, recommendedConfig, commonConfig);
+module.exports = {
+	"extends": ["eslint:recommended","./common-config.js"]
+};

node-config.js

@@ -1,11 +1,7 @@
-var baseConfig = require('./index'),
-	extend = require('extend');
-
-var nodeConfig = {
+module.exports = {
+  "extends": "./index.js",
   "env": {
     "es6": true,
     "node": true
   }
 };
-
-module.exports = extend(true, baseConfig, nodeConfig);

package.json

@@ -21,9 +21,7 @@
     "url": "https://github.com/Brightspace/eslint-config-brightspace/issues"
   },
   "homepage": "https://github.com/Brightspace/eslint-config-brightspace",
-  "devDependencies": {},
   "dependencies": {
-    "eslint": "^2.3.0",
-    "extend": "^3.0.0"
+    "eslint": "^4.1.1"
   }
 }

polymer-config.js

@@ -1,7 +1,5 @@
-var baseConfig = require('./index'),
-	extend = require('extend');
-
-var polymerConfig = {
+module.exports = {
+  "extends": "./index.js",
   "env": {
     "browser": true
   },
@@ -16,5 +14,3 @@ var polymerConfig = {
     "strict": 0
   }
 };
-
-module.exports = extend(true, baseConfig, polymerConfig);

react-config.js

@@ -1,10 +1,10 @@
-var baseConfig = require('./index'),
-	extend = require('extend');
-
-var reactConfig = {
-  "ecmaFeatures": {
-    "jsx": true,
-    "modules": true
+module.exports = {
+  "extends": "./index.js",
+  "parserOptions": {
+    "ecmaFeatures": {
+      "jsx": true
+    },
+    "sourceType": "module"
   },
   "env": {
     "browser": true,
@@ -16,5 +16,3 @@ var reactConfig = {
     "react"
   ]
 };
-
-module.exports = extend(true, baseConfig, reactConfig);

wct-config.js

@@ -1,7 +1,5 @@
-var polymerConfig = require('./polymer-config'),
-	extend = require('extend');
-
-var wctConfig = {
+module.exports = {
+  "extends": "./polymer-config.js",
   "env": {
     "es6": true,
     "mocha": true
@@ -16,5 +14,3 @@ var wctConfig = {
     "WCT": true
   }
 };
-
-module.exports = extend(true, polymerConfig, wctConfig);