chore: Use prettier (#274)

* Use prettier

* Fix more lint errors

* Use const and let

Author: danez

.eslintignore

@@ -1 +1,3 @@
 src/__tests__/fixtures/
+dist/
+flow-typed/

.eslintrc.js

@@ -1,13 +1,18 @@
 module.exports = {
   parser: 'babel-eslint',
-  extends: 'eslint:recommended',
+  extends: [
+    'eslint:recommended',
+    'prettier'
+  ],
+  plugins:[
+    'prettier'
+  ],
   rules: {
-    'comma-dangle': ['error', 'always-multiline'],
-    'no-underscore-dangle': 'off',
-    quotes: ['error', 'single', 'avoid-escape'],
-    strict: 'off',
-    'no-unused-vars': 'error',
-    'no-undef': 'error'
+    strict: ['error', 'never'],
+    'no-shadow': 'error',
+    'no-var': 'error',
+    'prefer-const': 'error',
+    'prettier/prettier': 'error',
   },
   env: {
     node: true,

.gitignore

@@ -1,8 +1,4 @@
 /dist
 node_modules/
-
-## IDE
 .idea/
-
-## Jest
 coverage/

.prettierignore

@@ -0,0 +1,2 @@
+src/__tests__/fixtures/
+dist/

.prettierrc

@@ -0,0 +1,20 @@
+{
+    "arrowParens": "avoid",
+    "trailingComma": "all",
+    "useTabs": false,
+    "semi": true,
+    "singleQuote": true,
+    "bracketSpacing": true,
+    "jsxBracketSameLine": false,
+    "tabWidth": 2,
+    "printWidth": 80,
+    "overrides": [{
+      "files": [
+        "bin/react-docgen.js",
+        "bin/__tests__/example/**/*.js"
+      ],
+      "options": {
+        "trailingComma": "es5"
+      }
+    }]
+  }

bin/__tests__/example/MultipleComponents.js

@@ -8,7 +8,7 @@
  *
  */
 
-var React = require('react');
+const React = require('react');
 
 exports.ComponentA = React.createClass({
   displayName: 'ComponentA',

bin/__tests__/example/customResolver.js

@@ -19,6 +19,10 @@ const code = `
 `;
 
 module.exports = function(ast, recast) {
-  return (new recast.types.NodePath(recast.parse(code)))
-    .get('program', 'body', 0, 'expression');
+  return new recast.types.NodePath(recast.parse(code)).get(
+    'program',
+    'body',
+    0,
+    'expression'
+  );
 };