Refactor babel config (bvaughn#1019)

Refactor babel config

.babelrc.js

@@ -0,0 +1,47 @@
+const env = process.env.NODE_ENV;
+
+if (env === 'commonjs' || env === 'es') {
+  module.exports = {
+    ignore: [
+      '*.jest.js',
+      '*.e2e.js',
+      '*.ssr.js',
+      '*.example.js',
+      'source/demo',
+      'source/jest-*.js',
+      'source/TestUtils.js',
+    ],
+    plugins: [
+      'transform-runtime',
+      ['flow-react-proptypes', {deadCode: true}],
+      ['transform-react-remove-prop-types', {mode: 'wrap'}],
+    ],
+    presets: [['env', {modules: false}], 'react', 'flow', 'stage-2'],
+  };
+
+  if (env === 'commonjs') {
+    module.exports.plugins.push('transform-es2015-modules-commonjs');
+  }
+}
+
+if (env === 'development') {
+  module.exports = {
+    presets: ['react', 'flow', 'stage-2'],
+  };
+}
+
+if (env === 'production') {
+  module.exports = {
+    comments: false,
+    plugins: ['transform-runtime'],
+    presets: ['env', 'react', 'flow', 'stage-2'],
+  };
+}
+
+if (env === 'test') {
+  module.exports = {
+    comments: false,
+    plugins: ['transform-es2015-modules-commonjs'],
+    presets: ['react', 'flow', 'stage-2'],
+  };
+}

package.json

@@ -12,10 +12,10 @@
   "scripts": {
     "build:types": "flow-copy-source --ignore \"**/*.{jest,e2e,ssr,example}.js\" source/WindowScroller dist/es/WindowScroller && flow-copy-source --ignore \"**/*.{jest,e2e,ssr,example}.js\" source/AutoSizer dist/es/AutoSizer ",
     "build": "npm run build:commonjs && npm run build:css && npm run build:es && npm run build:demo && npm run build:umd",
-    "build:commonjs": "npm run clean:commonjs && cross-env NODE_ENV=production cross-env BABEL_ENV=commonjs babel source --out-dir dist/commonjs",
+    "build:commonjs": "npm run clean:commonjs && cross-env NODE_ENV=commonjs babel source --out-dir dist/commonjs",
     "build:css": "postcss source/styles.css -o styles.css --use autoprefixer",
     "build:demo": "npm run clean:demo && cross-env NODE_ENV=production webpack --config webpack.config.demo.js -p --bail",
-    "build:es": "npm run clean:es && npm run build:types && cross-env NODE_ENV=production cross-env BABEL_ENV=es babel source --out-dir dist/es",
+    "build:es": "npm run clean:es && npm run build:types && cross-env NODE_ENV=es babel source --out-dir dist/es",
     "build:umd": "npm run clean:umd && cross-env NODE_ENV=production webpack --config webpack.config.umd.js --bail",
     "check-all": "yarn prettier && yarn lint && yarn flow",
     "ci-check": "yarn prettier:diff && yarn lint && yarn flow",
@@ -32,13 +32,18 @@
     "prettier:diff": "prettier --list-different '{playground,source}/**/*.js'",
     "postpublish": "npm run deploy",
     "prepublish": "npm run build",
-    "start": "webpack-dev-server --hot --config webpack.config.dev.js",
+    "start": "cross-env NODE_ENV=development webpack-dev-server --hot --config webpack.config.dev.js",
     "test": "npm run test:jest",
     "test:jest": "jest --no-watchman --runInBand",
     "test:ci": "jest --no-watchman --maxWorkers 2 --coverage && codecov",
     "watch": "watch 'clear && npm run test -s' source",
     "watch:jest": "jest --no-watchman --watch"
   },
+  "babel": {
+    "presets": [
+      "./.babelrc.js"
+    ]
+  },
   "files": [
     "dist",
     "styles.css"
@@ -98,15 +103,14 @@
     "babel-jest": "^22.0.4",
     "babel-loader": "7.1.2",
     "babel-plugin-flow-react-proptypes": "^13.0.0",
-    "babel-plugin-react-transform": "^3.0.0",
+    "babel-plugin-transform-es2015-modules-commonjs": "^6.26.0",
     "babel-plugin-transform-react-remove-prop-types": "^0.4.12",
     "babel-plugin-transform-runtime": "^6.23.0",
     "babel-polyfill": "^6.26.0",
     "babel-preset-env": "^1.6.1",
     "babel-preset-flow": "^6.23.0",
     "babel-preset-react": "^6.24.1",
-    "babel-preset-stage-1": "^6.24.1",
-    "bluebird": "^3.0.5",
+    "babel-preset-stage-2": "^6.24.1",
     "codecov": "^2.2.0",
     "codemirror": "^5.18.0",
     "cross-env": "^5.0.1",
@@ -121,12 +125,10 @@
     "eslint-plugin-prettier": "^2.4.0",
     "eslint-plugin-react": "^7.5.1",
     "eslint-plugin-relay": "^0.0.20",
-    "express": "^4.13.3",
     "extract-text-webpack-plugin": "^3.0.2",
     "file-loader": "^1.1.6",
     "flow-bin": "^0.63.1",
     "flow-copy-source": "^1.2.1",
-    "fs-extra": "^4.0.0",
     "gh-pages": "^1.0.0",
     "html-webpack-plugin": "^2.30.1",
     "husky": "^0.14.3",
@@ -144,9 +146,6 @@
     "react-dom": "^16.0.0",
     "react-router": "^4.1.1",
     "react-router-dom": "^4.1.1",
-    "react-transform-catch-errors": "^1.0.2",
-    "react-transform-hmr": "^1.0.2",
-    "redbox-react": "^1.4.3",
     "rimraf": "^2.4.3",
     "style-loader": "^0.19.1",
     "watch": "^1.0.2",