Use eslint-plugin-prettier instead of old messy airbnb based config

.eslintrc

@@ -1,60 +1,29 @@
 {
-  "parser": "babel-eslint",
   "extends": [
-    "eslint-config-airbnb",
+    "google",
+    "plugin:flowtype/recommended",
+    "plugin:react/recommended",
+    "prettier",
+    "prettier/flowtype",
+    "prettier/react"
   ],
   "plugins": [
     "flowtype",
-    "flow-vars"
+    "react",
+    "prettier"
   ],
-  "rules": {
-    "indent": [2, 2, {"SwitchCase": 1}],
-    "no-console": [0],
-    "func-names": [0],
-    "semi": [2, "never"],
-    "no-extra-semi": [2],
-    "space-before-function-paren": [2, "always"],
-    "no-else-return": [0],
-    "space-infix-ops": [0],
-    "react/prefer-es6-class": [0],
-    "react/prefer-stateless-function": [0],
-    "no-underscore-dangle": ["error", { "allow": ["_config"] }],
-    "import/no-unresolved": [0],
-    "global-require": [0],
-    "no-duplicate-imports": [0],
-    "spaced-comment": [0],
-    "arrow-parens": [0],
-    /*"quotes": ["error", "backtick"],*/
-    /*"flowtype/require-parameter-type": 1,*/
-    /*"flowtype/require-return-type": [*/
-      /*1,*/
-      /*"always",*/
-      /*{*/
-        /*"annotateUndefined": "never"*/
-      /*}*/
-    /*],*/
-    /*"flowtype/space-after-type-colon": [*/
-      /*1,*/
-      /*"always"*/
-    /*],*/
-    /*"flowtype/space-before-type-colon": [*/
-      /*1,*/
-      /*"never"*/
-    /*],*/
-    /*"flowtype/type-id-match": [*/
-      /*0,*/
-      /*"^([A-Z][a-z0-9]+)+Type$"*/
-    /*],*/
-    /*"flow-vars/define-flow-type": 1,*/
-    /*"flow-vars/use-flow-type": 1,*/
+  "parserOptions": {
+    "ecmaVersion": 2016,
+    "sourceType": "module",
+    "ecmaFeatures": {
+      "jsx": true
+    }
   },
-  "globals": {
-    "__PREFIX_LINKS__": true,
-    "__LINK_PREFIX__": true,
+  "env": {
+    "es6": true,
+    "node": true
   },
-  "settings": {
-    "flowtype": {
-      "onlyFilesWithFlowAnnotation": true
-    }
+  "rules": {
+    "prettier/prettier": ["error", {"trailingComma": true}]
   }
 }

package.json

@@ -1,23 +1,27 @@
 {
   "dependencies": {
-    "babel-cli": "^6.23.0",
+    "babel-cli": "^6.24.0",
     "babel-eslint": "^7.1.0",
     "babel-plugin-add-module-exports": "^0.2.1",
     "babel-plugin-lodash": "^3.2.11",
     "babel-plugin-transform-async-to-generator": "^6.22.0",
     "babel-plugin-transform-flow-strip-types": "^6.22.0",
     "babel-plugin-transform-runtime": "^6.23.0",
-    "babel-preset-env": "^1.2.0",
-    "babel-preset-es2015": "^6.22.0",
+    "babel-preset-env": "^1.2.2",
+    "babel-preset-es2015": "^6.24.0",
     "babel-preset-react": "^6.23.0",
     "babel-preset-stage-0": "^6.22.0",
-    "babel-register": "^6.23.0",
-    "eslint": "^3.17.0",
+    "babel-register": "^6.24.0",
+    "babel-runtime": "^6.23.0",
+    "eslint": "^3.17.1",
     "eslint-config-airbnb": "^14.1.0",
+    "eslint-config-google": "^0.7.1",
+    "eslint-config-prettier": "^1.5.0",
     "eslint-plugin-flow-vars": "^0.5.0",
-    "eslint-plugin-flowtype": "^2.30.0",
+    "eslint-plugin-flowtype": "^2.30.3",
     "eslint-plugin-import": "^2.2.0",
     "eslint-plugin-jsx-a11y": "^4.0.0",
+    "eslint-plugin-prettier": "^2.0.1",
     "eslint-plugin-react": "^6.10.0",
     "flow-bin": "^0.41.0",
     "iflow-debug": "^1.0.15",
@@ -28,9 +32,6 @@
     "prettier": "^0.22.0",
     "purdy": "^2.2.1"
   },
-  "devDependencies": {
-    "babel-runtime": "^6.23.0"
-  },
   "jest": {
     "verbose": true,
     "modulePathIgnorePatterns": [
@@ -51,7 +52,7 @@
     "build": "lerna run build",
     "lint": "eslint --ext .js,.jsx --ignore-path .gitignore .",
     "lint:flow": "babel-node scripts/flow-check.js",
-    "fix-semi": "eslint --ignore-pattern node_modules --ignore-pattern public --parser babel-eslint --no-eslintrc --rule '{\"semi\": [2, \"never\"], \"no-extra-semi\": [2]}' --fix packages/**/src/*.js packages/gatsby/lib/**/*.js www/*.js www/**/*.js examples/gatsbygram/*.js examples/gatsbygram/**/*.js",
+    "fix-semi": "eslint --quiet --ignore-pattern node_modules --ignore-pattern public --parser babel-eslint --no-eslintrc --rule '{\"semi\": [2, \"never\"], \"no-extra-semi\": [2]}' --fix packages/**/src/*.js packages/gatsby/lib/**/*.js www/*.js www/**/*.js examples/gatsbygram/*.js examples/gatsbygram/**/*.js",
     "format-packages": "prettier --trailing-comma es5 --write packages/**/src/*.js",
     "format-gatsby": "prettier --trailing-comma es5 --write packages/gatsby/lib/**/*.js",
     "format-www": "find www -iname *.js | grep -v node_modules | grep -v public | grep -v .intermediate-representation | xargs prettier --write --trailing-comma es5",

packages/gatsby-source-filesystem/src/gatsby-node.js

@@ -1,7 +1,6 @@
 import Promise from "bluebird"
 import mapLimit from "async/mapLimit"
 
-const _ = require("lodash")
 const path = require("path")
 const md5File = require("md5-file")
 const recursive = require("recursive-readdir")

packages/gatsby/lib/utils/babel-config.js

@@ -122,8 +122,7 @@ function findBabelPackage(directory) {
 module.exports = async function babelConfig(program, stage) {
   const { directory } = program
 
-  let babelrc = findBabelrc(directory) ||
-    findBabelPackage(directory)
+  let babelrc = findBabelrc(directory) || findBabelPackage(directory)
 
   // If user doesn't have a custom babelrc, add defaults.
   if (!babelrc) {
@@ -137,10 +136,10 @@ module.exports = async function babelConfig(program, stage) {
   }
 
   // Add default plugins and presets.
-  [`es2015`, `stage-0`, `react`].forEach((preset) => {
+  [`es2015`, `stage-0`, `react`].forEach(preset => {
     babelrc.presets.push(preset)
   });
-  [`add-module-exports`, `transform-object-assign`].forEach((plugin) => {
+  [`add-module-exports`, `transform-object-assign`].forEach(plugin => {
     babelrc.plugins.push(plugin)
   })
 
@@ -167,7 +166,6 @@ module.exports = async function babelConfig(program, stage) {
     modifiedConfig = {}
   }
 
-
   // Merge all together.
   const merged = _.defaultsDeep(modifiedConfig, normalizedConfig)
   return merged