add error message if bot keep- and out-file-extension is used

babel · Feb 28, 2019 · e12d5e5 · e12d5e5
1 parent 003d658
commit e12d5e5
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/packages/babel-cli/src/babel/options.js b/packages/babel-cli/src/babel/options.js
@@ -215,6 +215,12 @@ export default function parseArgv(args: Array<string>) {
     );
   }
 
+  if (commander.keepFileExtension && commander.outFileExtension) {
+    errors.push(
+      "--out-file-extension cannot be used with --keep-file-extension",
+    );
+  }
+
   if (errors.length) {
     console.error("babel:");
     errors.forEach(function(e) {