1 files changed, 25 insertions, 0 deletions
diff --git a/node_modules/algoliasearch/src/browser/migration-layer/script.js b/node_modules/algoliasearch/src/browser/migration-layer/script.js
new file mode 100644
index 00000000..9d12315f
--- /dev/null
+++ b/node_modules/algoliasearch/src/browser/migration-layer/script.js
@@ -0,0 +1,25 @@
+'use strict';
+
+// This script will be browserified and prepended to the normal build
+// directly in window, not wrapped in any module definition
+// To avoid cases where we are loaded with /latest/ along with
+migrationLayer(process.env.ALGOLIA_BUILDNAME);
+
+// Now onto the V2 related code:
+//  If the client is using /latest/$BUILDNAME.min.js, load V2 of the library
+//
+//  Otherwise, setup a migration layer that will throw on old constructors like
+//  new AlgoliaSearch().
+//  So that users upgrading from v2 to v3 will have a clear information
+//  message on what to do if they did not read the migration guide
+function migrationLayer(buildName) {
+  var isUsingLatest = require('./is-using-latest');
+  var loadV2 = require('./load-v2');
+  var oldGlobals = require('./old-globals');
+
+  if (isUsingLatest(buildName)) {
+    loadV2(buildName);
+  } else {
+    oldGlobals();
+  }
+}