From 51afb0bc52c1b21f06d4d009ab6daf435fcb5071 Mon Sep 17 00:00:00 2001
From: Alex Fedoseev <alex.fedoseev@gmail.com>
Date: Fri, 15 Jan 2016 14:35:07 +0300
Subject: [PATCH] Load babel polyfill only for legacy node

---
 examples/basic/package.json       |  2 +-
 examples/css-modules/package.json |  2 +-
 src/bootstrap.loader.js           | 24 +++++++++++++++++++++++-
 3 files changed, 25 insertions(+), 3 deletions(-)

diff --git a/examples/basic/package.json b/examples/basic/package.json
index c355a53e..d8f1e2a2 100644
--- a/examples/basic/package.json
+++ b/examples/basic/package.json
@@ -43,7 +43,7 @@
     "babel-loader": "^6.1.0",
     "babel-preset-es2015": "^6.1.18",
     "body-parser": "^1.14.1",
-    "bootstrap-loader": "^1.0.0-rc",
+    "bootstrap-loader": "file:../../.",
     "css-loader": "^0.22.0",
     "eslint": "^1.9.0",
     "eslint-config-airbnb": "^1.0.0",
diff --git a/examples/css-modules/package.json b/examples/css-modules/package.json
index 487ac0ca..29ccda07 100644
--- a/examples/css-modules/package.json
+++ b/examples/css-modules/package.json
@@ -51,7 +51,7 @@
     "babel-preset-es2015": "^6.3.13",
     "babel-preset-react": "^6.3.13",
     "body-parser": "^1.14.1",
-    "bootstrap-loader": "^1.0.0-rc",
+    "bootstrap-loader": "file:../../.",
     "css-loader": "^0.23.0",
     "eslint": "^1.9.0",
     "eslint-config-airbnb": "^1.0.0",
diff --git a/src/bootstrap.loader.js b/src/bootstrap.loader.js
index 1db7f7f3..32d0010a 100644
--- a/src/bootstrap.loader.js
+++ b/src/bootstrap.loader.js
@@ -1,6 +1,28 @@
 /* eslint func-names: 0 */
 
-import 'babel-polyfill';
+import semver from 'semver';
+
+// For Node <= v0.12.x Babel polyfill is required
+if (semver.lt(process.version, '4.0.0')) {
+  const babelLatest = 'babel-polyfill';
+  const babelPrev = 'babel/polyfill';
+
+  const isBabelLatest = require.resolve(babelLatest);
+  const isBabelPrev = require.resolve(babelPrev);
+
+  if (!isBabelLatest && !isBabelPrev) {
+    throw new Error(`
+      For Node <= v0.12.x Babel polyfill is required.
+      Make sure it's installed in your 'node_modules/' directory.
+    `);
+  }
+
+  if (isBabelLatest) {
+    require(babelLatest);
+  } else {
+    require(babelPrev);
+  }
+}
 
 import path from 'path';
 import loaderUtils from 'loader-utils';