build(babel): Update to babel 7

BREAKING CHANGE: Babel

.babelrc

@@ -1,25 +1,8 @@
 {
-  "presets": [
-    ["env", { "modules": false }],
-    "react",
-    [
-      "latest",
-      {
-        "es2015": {
-          "modules": false
-        }
-      }
-    ]
-  ],
+  "presets": ["@babel/env", "@babel/react"],
   "env": {
     "production": {
-      "plugins": [
-        ["react-remove-properties", { "properties": ["data-test"] }],
-        "external-helpers"
-      ]
-    },
-    "test": {
-      "presets": ["es2015", "react"]
+      "plugins": [["react-remove-properties", { "properties": ["data-test"] }]]
     }
   }
 }

package.json

@@ -21,39 +21,35 @@
     "lodash.isequal": "^4.5.0"
   },
   "devDependencies": {
-    "babel-core": "^6.26.0",
-    "babel-eslint": "^10.0.0",
-    "babel-jest": "^23.4.0",
-    "babel-plugin-external-helpers": "^6.22.0",
+    "@babel/core": "^7.1.2",
+    "@babel/plugin-proposal-object-rest-spread": "^7.0.0",
+    "@babel/preset-env": "^7.1.0",
+    "@babel/preset-react": "^7.0.0",
+    "babel-core": "^7.0.0-bridge.0",
+    "babel-eslint": "^10.0.1",
+    "babel-jest": "^23.6.0",
     "babel-plugin-react-remove-properties": "^0.2.5",
-    "babel-plugin-transform-object-rest-spread": "^6.26.0",
-    "babel-preset-env": "^1.6.1",
-    "babel-preset-es2015": "^6.24.1",
-    "babel-preset-es2015-rollup": "^3.0.0",
-    "babel-preset-latest": "^6.24.1",
-    "babel-preset-react": "^6.24.1",
-    "babel-preset-stage-1": "^6.24.1",
-    "cross-env": "^5.1.3",
+    "cross-env": "^5.2.0",
     "cz-conventional-changelog": "^2.1.0",
     "enzyme": "^3.6.0",
     "enzyme-adapter-react-16": "^1.4.0",
     "eslint": "^5.2.0",
     "eslint-plugin-jsx-a11y": "^6.1.1",
     "eslint-plugin-react": "^7.4.0",
     "husky": "^1.1.2",
-    "jest": "^23.4.1",
+    "jest": "^23.6.0",
     "prettier": "^1.14.3",
     "react": "^16.4.1",
     "react-dom": "^16.4.1",
-    "rollup": "^0.66.0",
-    "rollup-plugin-babel": "^3.0.3",
+    "rollup": "^0.66.6",
+    "rollup-plugin-babel": "^4.0.3",
     "rollup-plugin-commonjs": "^9.1.3",
     "rollup-plugin-css-only": "^0.4.0",
     "rollup-plugin-filesize": "^5.0.0",
     "rollup-plugin-jsx": "^1.0.3",
     "rollup-plugin-node-resolve": "^3.0.0",
     "rollup-plugin-uglify": "^6.0.0",
-    "semantic-release": "^15.8.1"
+    "semantic-release": "^15.9.17"
   },
   "jest": {
     "collectCoverage": true,

rollup.config.js

@@ -11,17 +11,18 @@ export default {
   input: 'src/index.js',
   output: {
     file: 'dist/index.js',
-    format: 'cjs'
+    format: 'cjs',
   },
   external: ['react', 'prop-types', 'react-dom', 'lodash.isequal'],
   plugins: [
     css({ output: 'dist/picky.css' }),
     babel({
-      exclude: 'node_modules/**'
+      exclude: 'node_modules/**',
+      externalHelpers: true,
     }),
     // resolve(),
     // commonjs(),
     isProduction && uglify(),
-    isProduction && filesize()
-  ]
+    isProduction && filesize(),
+  ],
 };