1 files changed, 11 insertions, 0 deletions
diff --git a/node_modules/rechoir/lib/extension.js b/node_modules/rechoir/lib/extension.js
new file mode 100644
index 000000000..60f19da4e
--- /dev/null
+++ b/node_modules/rechoir/lib/extension.js
@@ -0,0 +1,11 @@
+const path = require('path');
+
+const EXTRE = /^[.]?[^.]+([.].*)$/;
+
+module.exports = function (input) {
+  var extension = EXTRE.exec(path.basename(input));
+  if (!extension) {
+    return;
+  }
+  return extension[1];
+};