New: Add a 'recommended' config

Author: not-an-aardvark

Diff for: README.md

@@ -41,8 +41,19 @@ Then configure the rules you want to use under the rules section.
 }
 ```
 
+Additionally, you can enable all recommended rules from this plugin:
+
+```json
+{
+    "extends": [
+        "plugin:eslint-plugin/recommended"
+    ]
+}
+```
+
 ## Supported Rules
 
+✔️ indicates that a rule is recommended.
 🛠 indicates that a rule is fixable.
 
-* 🛠 [no-deprecated-report-api](https://github.com/not-an-aardvark/eslint-plugin-eslint-plugin/blob/master/docs/rules/no-deprecated-report-api.md): Prohibits the deprecated `context.report(node, message)` API
+* ✔️ 🛠 [no-deprecated-report-api](https://github.com/not-an-aardvark/eslint-plugin-eslint-plugin/blob/master/docs/rules/no-deprecated-report-api.md): Prohibits the deprecated `context.report(node, message)` API

Diff for: lib/index.js

@@ -11,15 +11,26 @@
 
 const fs = require('fs');
 const path = require('path');
+const PLUGIN_NAME = require('../package').name.replace(/^eslint-plugin-/, '');
 
 // ------------------------------------------------------------------------------
 // Plugin Definition
 // ------------------------------------------------------------------------------
 
 
 // import all rules in lib/rules
-module.exports.rules = fs
+const allRules = fs
   .readdirSync(`${__dirname}/rules`)
   .filter(fileName => fileName.endsWith('.js') && /^[^._]/.test(fileName))
   .map(fileName => fileName.replace(/\.js$/, ''))
   .reduce((rules, ruleName) => Object.assign(rules, { [ruleName]: require(path.join(__dirname, 'rules', ruleName)) }), {});
+
+module.exports.rules = allRules;
+
+module.exports.configs = {
+  recommended: {
+    rules: Object.keys(allRules)
+        .filter(ruleName => allRules[ruleName].meta.docs.recommended)
+        .reduce((rules, ruleName) => Object.assign(rules, { [`${PLUGIN_NAME}/${ruleName}`]: 2 }), {}),
+  },
+};

Diff for: lib/rules/no-deprecated-report-api.js

@@ -16,7 +16,7 @@ module.exports = {
     docs: {
       description: 'disallow use of the deprecated context.report() API',
       category: 'Rules',
-      recommended: false,
+      recommended: true,
     },
     fixable: 'code',  // or "code" or "whitespace"
     schema: [],