[eslint config] [eslint config base] [breaking] Migrate non-React rules to a separate linter config.

packages/eslint-config-airbnb-base/.eslintrc

@@ -0,0 +1,8 @@
+{
+  "extends": "./index.js",
+  "rules": {
+    // disable requiring trailing commas because it might be nice to revert to
+    // being JSON at some point, and I don't want to make big changes now.
+    "comma-dangle": 0
+  }
+}

packages/eslint-config-airbnb-base/CHANGELOG.md

@@ -0,0 +1,3 @@
+1.0.0 / 2016-04-16
+==================
+ - Initial commmit; moved content over from `eslint-config-airbnb` package.

packages/eslint-config-airbnb-base/README.md

@@ -0,0 +1,33 @@
+# eslint-config-airbnb-base
+
+[![npm version](https://badge.fury.io/js/eslint-config-airbnb-base.svg)](http://badge.fury.io/js/eslint-config-airbnb-base)
+
+This package provides Airbnb's base JS .eslintrc as an extensible shared config.
+
+## Usage
+
+We export two ESLint configurations for your usage.
+
+### eslint-config-airbnb-base
+
+Our default export contains all of our ESLint rules, including ECMAScript 6+ and React. It requires `eslint` and `eslint-plugin-import`.
+
+1. `npm install --save-dev eslint-config-airbnb-base eslint-plugin-import eslint`
+2. add `"extends": "airbnb-base"` to your .eslintrc
+
+### eslint-config-airbnb-base/legacy
+
+Lints ES5 and below. Requires `eslint` and `eslint-plugin-import`.
+
+1. `npm install --save-dev eslint-config-airbnb-base eslint-plugin-import eslint`
+2. add `"extends": "airbnb-base/legacy"` to your .eslintrc
+
+See [Airbnb's overarching ESLint config](https://npmjs.com/eslint-config-airbnb), [Airbnb's Javascript styleguide](https://github.com/airbnb/javascript), and the [ESlint config docs](http://eslint.org/docs/user-guide/configuring#extending-configuration-files) for more information.
+
+## Improving this config
+
+Consider adding test cases if you're making complicated rules changes, like anything involving regexes. Perhaps in a distant future, we could use literate programming to structure our README as test cases for our .eslintrc?
+
+You can run tests with `npm test`.
+
+You can make sure this module lints with itself using `npm run lint`.

packages/eslint-config-airbnb-base/index.js

@@ -0,0 +1,13 @@
+module.exports = {
+  extends: [
+    './legacy',
+    './rules/es6',
+  ].map(require.resolve),
+  parserOptions: {
+    ecmaVersion: 7,
+    sourceType: 'module',
+  },
+  rules: {
+    strict: 2,
+  }
+};

packages/eslint-config-airbnb-base/legacy.js

@@ -0,0 +1,20 @@
+module.exports = {
+  extends: [
+    './rules/best-practices',
+    './rules/errors',
+    './rules/legacy',
+    './rules/node',
+    './rules/style',
+    './rules/variables'
+  ].map(require.resolve),
+  env: {
+    browser: true,
+    node: true,
+    amd: false,
+    mocha: false,
+    jasmine: false
+  },
+  ecmaFeatures: {},
+  globals: {},
+  rules: {}
+};

packages/eslint-config-airbnb-base/package.json

@@ -0,0 +1,56 @@
+{
+  "name": "eslint-config-airbnb-base",
+  "version": "1.0.0",
+  "description": "Airbnb's base JS ESLint config, following our styleguide",
+  "main": "index.js",
+  "scripts": {
+    "lint": "eslint .",
+    "tests-only": "babel-tape-runner ./test/test-*.js",
+    "pretest": "eslint-find-rules --unused",
+    "test": "npm run --silent lint && npm run --silent tests-only"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/airbnb/javascript"
+  },
+  "keywords": [
+    "eslint",
+    "eslintconfig",
+    "config",
+    "airbnb",
+    "javascript",
+    "styleguide"
+  ],
+  "author": "Jake Teton-Landis (https://twitter.com/@jitl)",
+  "contributors": [
+    {
+      "name": "Jake Teton-Landis",
+      "url": "https://twitter.com/jitl"
+    },
+    {
+      "name": "Jordan Harband",
+      "email": "ljharb@gmail.com",
+      "url": "http://ljharb.codes"
+    },
+    {
+      "name": "Harrison Shoff",
+      "url": "https://twitter.com/hshoff"
+    }
+  ],
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/airbnb/javascript/issues"
+  },
+  "homepage": "https://github.com/airbnb/javascript",
+  "devDependencies": {
+    "babel-tape-runner": "^1.3.1",
+    "eslint": "^2.8.0",
+    "eslint-find-rules": "^1.3.0",
+    "eslint-plugin-import": "^1.5.0",
+    "tape": "^4.5.1"
+  },
+  "peerDependencies": {
+    "eslint": "^2.8.0",
+    "eslint-plugin-import": "^1.5.0"
+  }
+}

packages/eslint-config-airbnb-base/rules/.eslintrc.json

@@ -0,0 +1,5 @@
+{
+  "rules": {
+    "quote-props": 0
+  }
+}

packages/eslint-config-airbnb-base/rules/es6.js

@@ -6,7 +6,6 @@ module.exports = {
     'ecmaVersion': 6,
     'sourceType': 'module',
     'ecmaFeatures': {
-      'jsx': true,
       'generators': false,
       'objectLiteralDuplicateProperties': false
     }

packages/eslint-config-airbnb-base/rules/style.js

@@ -31,7 +31,7 @@ module.exports = {
     'indent': [2, 2, { 'SwitchCase': 1, 'VariableDeclarator': 1 }],
     // specify whether double or single quotes should be used in JSX attributes
     // http://eslint.org/docs/rules/jsx-quotes
-    'jsx-quotes': [2, 'prefer-double'],
+    'jsx-quotes': 0,
     // enforces spacing between keys and values in object literal properties
     'key-spacing': [2, { 'beforeColon': false, 'afterColon': true }],
     // require a space before & after certain keywords

packages/eslint-config-airbnb-base/test/.eslintrc

@@ -0,0 +1,9 @@
+{
+  "rules": {
+    // disabled because I find it tedious to write tests while following this
+    // rule
+    "no-shadow": 0,
+    // tests uses `t` for tape
+    "id-length": [2, {"min": 2, "properties": "never", "exceptions": ["t"]}]
+  }
+}

packages/eslint-config-airbnb-base/test/test-base.js

@@ -0,0 +1,29 @@
+import fs from 'fs';
+import path from 'path';
+import test from 'tape';
+
+const index = require('../');
+
+const files = { index };
+
+fs.readdirSync(path.join(__dirname, '../rules')).forEach(name => {
+  files[name] = require(`../rules/${name}`); // eslint-disable-line global-require
+});
+
+Object.keys(files).forEach(name => {
+  const config = files[name];
+
+  test(`${name}: does not reference react`, t => {
+    t.plan(2);
+
+    // scan plugins for react and fail if it is found
+    const hasReactPlugin = Object.prototype.hasOwnProperty.call(config, 'plugins') &&
+      config.plugins.indexOf('react') !== -1;
+    t.notOk(hasReactPlugin, 'there is no react plugin');
+
+    // scan rules for react/ and fail if any exist
+    const reactRuleIds = Object.keys(config.rules)
+      .filter(ruleId => ruleId.indexOf('react/') === 0);
+    t.deepEquals(reactRuleIds, [], 'there are no react/ rules');
+  });
+});

packages/eslint-config-airbnb/README.md

@@ -10,27 +10,18 @@ We export three ESLint configurations for your usage.
 
 ### eslint-config-airbnb
 
-Our default export contains all of our ESLint rules, including ECMAScript 6+
-and React. It requires `eslint`, `eslint-plugin-import`, `eslint-plugin-react`,
-and `eslint-plugin-jsx-a11y`.
+Our default export contains all of our ESLint rules, including ECMAScript 6+ and React. It requires `eslint`, `eslint-config-airbnb-base`, `eslint-plugin-import`, `eslint-plugin-react`, and `eslint-plugin-jsx-a11y`.
 
-1. `npm install --save-dev eslint-config-airbnb eslint-plugin-import eslint-plugin-react eslint-plugin-jsx-a11y eslint`
+1. `npm install --save-dev eslint-config-airbnb eslint-config-airbnb-base eslint-plugin-import eslint-plugin-react eslint-plugin-jsx-a11y eslint`
 2. add `"extends": "airbnb"` to your .eslintrc
 
 ### eslint-config-airbnb/base
 
-Lints ES6+ but does not lint React. Requires `eslint` and
-`eslint-plugin-import`.
-
-1. `npm install --save-dev eslint-config-airbnb eslint-plugin-import eslint`
-2. add `"extends": "airbnb/base"` to your .eslintrc
+This entry point is deprecated. See [eslint-config-airbnb-base](https://npmjs.com/eslint-config-airbnb-base).
 
 ### eslint-config-airbnb/legacy
 
-Lints ES5 and below. Requires `eslint` and `eslint-plugin-import`.
-
-1. `npm install --save-dev eslint-config-airbnb eslint-plugin-import eslint`
-2. add `"extends": "airbnb/legacy"` to your .eslintrc
+This entry point is deprecated. See [eslint-config-airbnb-base](https://npmjs.com/eslint-config-airbnb-base).
 
 See [Airbnb's Javascript styleguide](https://github.com/airbnb/javascript) and
 the [ESlint config docs](http://eslint.org/docs/user-guide/configuring#extending-configuration-files)
@@ -38,9 +29,7 @@ for more information.
 
 ## Improving this config
 
-Consider adding test cases if you're making complicated rules changes, like
-anything involving regexes. Perhaps in a distant future, we could use literate
-programming to structure our README as test cases for our .eslintrc?
+Consider adding test cases if you're making complicated rules changes, like anything involving regexes. Perhaps in a distant future, we could use literate programming to structure our README as test cases for our .eslintrc?
 
 You can run tests with `npm test`.
 

packages/eslint-config-airbnb/base.js

@@ -1,7 +1,4 @@
 module.exports = {
-  extends: [
-    './legacy',
-    './rules/es6',
-  ].map(require.resolve),
-  rules: {}
+  extends: ['eslint-config-airbnb-base'].map(require.resolve),
+  rules: {},
 };

packages/eslint-config-airbnb/index.js

@@ -1,7 +1,7 @@
 module.exports = {
   extends: [
-    './base',
-    './rules/strict',
+    'eslint-config-airbnb-base',
+    'eslint-config-airbnb-base/rules/strict',
     './rules/react',
     './rules/react-a11y',
   ].map(require.resolve),

packages/eslint-config-airbnb/legacy.js

@@ -1,20 +1,4 @@
 module.exports = {
-  extends: [
-    './rules/best-practices',
-    './rules/errors',
-    './rules/legacy',
-    './rules/node',
-    './rules/style',
-    './rules/variables'
-  ].map(require.resolve),
-  env: {
-    browser: true,
-    node: true,
-    amd: false,
-    mocha: false,
-    jasmine: false
-  },
-  ecmaFeatures: {},
-  globals: {},
-  rules: {}
+  extends: ['eslint-config-airbnb-base/legacy'].map(require.resolve),
+  rules: {},
 };

packages/eslint-config-airbnb/package.json

@@ -46,6 +46,8 @@
     "babel-tape-runner": "^1.3.1",
     "eslint": "^2.8.0",
     "eslint-find-rules": "^1.3.0",
+    "eslint-config-airbnb-base": "^1.0.0",
+    "eslint-plugin-jsx-a11y": "^0.6.2",
     "eslint-plugin-import": "^1.5.0",
     "eslint-plugin-jsx-a11y": "^0.6.2",
     "eslint-plugin-react": "^5.0.1",
@@ -54,6 +56,7 @@
   },
   "peerDependencies": {
     "eslint": "^2.8.0",
+    "eslint-config-airbnb-base": "^1.0.0",
     "eslint-plugin-jsx-a11y": "^0.6.2",
     "eslint-plugin-import": "^1.5.0",
     "eslint-plugin-react": "^5.0.1"

packages/eslint-config-airbnb/rules/react.js

@@ -2,6 +2,11 @@ module.exports = {
   'plugins': [
     'react'
   ],
+  'parserOptions': {
+    'ecmaFeatures': {
+      'jsx': true,
+    },
+  },
   'ecmaFeatures': {
     'jsx': true
   },