Upgrade babel 7

v1/babel.config.js

@@ -0,0 +1,11 @@
+module.exports = {
+  env: {
+    test: {
+      presets: ['@babel/env', '@babel/react'],
+      plugins: [
+        '@babel/plugin-proposal-class-properties',
+        '@babel/plugin-proposal-object-rest-spread',
+      ],
+    },
+  },
+};

v1/jest.transform.js

@@ -0,0 +1,3 @@
+const babelConfig = require('./babel.config');
+
+module.exports = require('babel-jest').createTransformer(babelConfig);

v1/lib/__tests__/build-files.test.js

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  */
-
+require('@babel/polyfill');
 const filepath = require('filepath');
 const fm = require('front-matter');
 const fs = require('fs-extra');

v1/lib/build-files.js

@@ -7,16 +7,16 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-require('babel-polyfill');
-require('babel-register')({
+require('@babel/polyfill');
+require('@babel/register')({
   babelrc: false,
   only: [__dirname, `${process.cwd()}/core`],
   plugins: [
     require('./server/translate-plugin.js'),
-    'transform-class-properties',
-    'transform-object-rest-spread',
+    '@babel/plugin-proposal-class-properties',
+    '@babel/plugin-proposal-object-rest-spread',
   ],
-  presets: ['react', 'env'],
+  presets: ['@babel/react', '@babel/env'],
 });
 
 // initial check that required files are present

v1/lib/start-server.js

@@ -7,15 +7,15 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-require('babel-register')({
+require('@babel/register')({
   babelrc: false,
   only: [__dirname, `${process.cwd()}/core`],
   plugins: [
     require('./server/translate-plugin.js'),
-    'transform-class-properties',
-    'transform-object-rest-spread',
+    '@babel/plugin-proposal-class-properties',
+    '@babel/plugin-proposal-object-rest-spread',
   ],
-  presets: ['react', 'env'],
+  presets: ['@babel/react', '@babel/env'],
 });
 
 const chalk = require('chalk');

v1/lib/version.js

@@ -7,15 +7,15 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-require('babel-register')({
+require('@babel/register')({
   babelrc: false,
   only: [__dirname, `${process.cwd()}/core`],
   plugins: [
     require('./server/translate-plugin.js'),
-    'transform-class-properties',
-    'transform-object-rest-spread',
+    '@babel/plugin-proposal-class-properties',
+    '@babel/plugin-proposal-object-rest-spread',
   ],
-  presets: ['react', 'env'],
+  presets: ['@babel/react', '@babel/env'],
 });
 
 const program = require('commander');

v1/lib/write-translations.js

@@ -9,18 +9,18 @@
 
 /* generate the i18n/en.json file */
 
-require('babel-register')({
+require('@babel/register')({
   babelrc: false,
   only: [__dirname, `${process.cwd()}/core`],
   plugins: [
     require('./server/translate-plugin.js'),
-    'transform-class-properties',
-    'transform-object-rest-spread',
+    '@babel/plugin-proposal-class-properties',
+    '@babel/plugin-proposal-object-rest-spread',
   ],
-  presets: ['react', 'env'],
+  presets: ['@babel/react', '@babel/env'],
 });
 
-const traverse = require('babel-traverse').default;
+const traverse = require('@babel/traverse').default;
 const babylon = require('babylon');
 const fs = require('fs-extra');
 const glob = require('glob');