1 files changed, 50 insertions, 0 deletions
diff --git a/node_modules/algoliasearch/src/browser/migration-layer/load-v2.js b/node_modules/algoliasearch/src/browser/migration-layer/load-v2.js
new file mode 100644
index 00000000..b3470baa
--- /dev/null
+++ b/node_modules/algoliasearch/src/browser/migration-layer/load-v2.js
@@ -0,0 +1,50 @@
+'use strict';
+
+module.exports = loadV2;
+
+function loadV2(buildName) {
+  var loadScript = require('load-script');
+  var v2ScriptUrl = '//cdn.jsdelivr.net/algoliasearch/2/' + buildName + '.min.js';
+
+  var message = '-- AlgoliaSearch `latest` warning --\n' +
+    'Warning, you are using the `latest` version string from jsDelivr to load the AlgoliaSearch library.\n' +
+    'Using `latest` is no more recommended, you should load //cdn.jsdelivr.net/algoliasearch/2/algoliasearch.min.js\n\n' +
+    'Also, we updated the AlgoliaSearch JavaScript client to V3. If you want to upgrade,\n' +
+    'please read our migration guide at https://github.com/algolia/algoliasearch-client-js/wiki/Migration-guide-from-2.x.x-to-3.x.x\n' +
+    '-- /AlgoliaSearch  `latest` warning --';
+
+  if (window.console) {
+    if (window.console.warn) {
+      window.console.warn(message);
+    } else if (window.console.log) {
+      window.console.log(message);
+    }
+  }
+
+  // If current script loaded asynchronously,
+  // it will load the script with DOMElement
+  // otherwise, it will load the script with document.write
+  try {
+    // why \x3c? http://stackoverflow.com/a/236106/147079
+    document.write('\x3Cscript>window.ALGOLIA_SUPPORTS_DOCWRITE = true\x3C/script>');
+
+    if (window.ALGOLIA_SUPPORTS_DOCWRITE === true) {
+      document.write('\x3Cscript src="' + v2ScriptUrl + '">\x3C/script>');
+      scriptLoaded('document.write')();
+    } else {
+      loadScript(v2ScriptUrl, scriptLoaded('DOMElement'));
+    }
+  } catch (e) {
+    loadScript(v2ScriptUrl, scriptLoaded('DOMElement'));
+  }
+}
+
+function scriptLoaded(method) {
+  return function log() {
+    var message = 'AlgoliaSearch: loaded V2 script using ' + method;
+
+    if (window.console && window.console.log) {
+      window.console.log(message);
+    }
+  };
+}