update to Babel v7 (#1048)

update to Babel v7

.circleci/config.yml

@@ -63,9 +63,10 @@ jobs:
           command: npm run eslint -- --format junit -o reports/junit/js-lint-results.xml
       - run:
           name: Run all Jest test suites
-          command: npm run jest -- --ci -i --testResultsProcessor="jest-junit"
+          command: npm run jest -- --ci -i --reporters="jest-junit"
           environment:
-            JEST_JUNIT_OUTPUT: reports/junit/jest/js-jest-results.xml
+            JEST_JUNIT_OUTPUT_NAME: js-jest-results.xml
+            JEST_JUNIT_OUTPUT_DIR: reports/junit/jest
       - store_test_results:
           path: reports/junit
       - store_artifacts:

.eslintrc.js

@@ -1,4 +1,5 @@
 module.exports = {
+  parser: 'babel-eslint',
   extends: '@webex/eslint-config-react',
   env: {
     jest: true,

.gitignore

@@ -13,3 +13,4 @@ tmp.*
 reports/*
 .python-version
 .cache
+coverage/

babel.config.js

@@ -0,0 +1,61 @@
+module.exports = {
+  presets: [
+    [
+      '@babel/preset-env',
+      {
+        targets: [
+          'last 2 Chrome major versions',
+          'last 1 ChromeAndroid major versions',
+          'last 2 Firefox major versions',
+          'last 1 FirefoxAndroid major versions',
+          'last 2 Safari major versions',
+          'last 3 iOS major versions',
+          'last 2 Edge major versions',
+          'last 1 Samsung versions',
+          'ie >= 11'
+        ]
+      }
+    ],
+    '@babel/preset-react'
+  ],
+  plugins: [
+    [
+      '@babel/plugin-transform-runtime',
+      {
+        corejs: 2
+      }
+    ],
+    [
+      '@babel/plugin-proposal-decorators',
+      {
+        legacy: true
+      }
+    ],
+    '@babel/plugin-proposal-export-default-from',
+    '@babel/plugin-proposal-export-namespace-from',
+    '@babel/plugin-proposal-object-rest-spread',
+    'lodash'
+  ],
+  env: {
+    development: {
+      plugins: [
+        [
+          'react-transform',
+          {
+            transforms: [
+              {
+                transform: 'react-transform-hmr',
+                imports: ['react'],
+                locals: ['module']
+              }
+            ]
+          }
+        ]
+      ]
+    },
+    test: {
+      retainLines: true,
+      sourceMaps: 'inline'
+    }
+  }
+};

jest.config.json

@@ -3,7 +3,6 @@
     "<rootDir>/packages/node_modules/"
   ],
   "testPathIgnorePatterns": ["<rootDir>/node_modules/"],
-  "testURL": "http://localhost",
   "transformIgnorePatterns": ["<rootDir>/node_modules/"],
   "moduleNameMapper": {
     "^.+\\.(css|scss|less)$": "identity-obj-proxy",