From c33c280e096165c7917f5ea826e99de512e6a479 Mon Sep 17 00:00:00 2001
From: Jeroen Engels <jfm.engels@gmail.com>
Date: Fri, 1 Oct 2021 23:14:26 +0200
Subject: [PATCH] Throw an error when input is not a JS/Elm file

---
 src/run.ts | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/run.ts b/src/run.ts
index 2ec84fa..d2077e1 100644
--- a/src/run.ts
+++ b/src/run.ts
@@ -79,9 +79,7 @@ export async function run(
       process.exit(1)
     }
   } else {
-    console.error('Please provide a path to an Elm file.');
-    program.outputHelp();
-    return;
+    throw new Error('Please provide a path to an Elm file.\n' + program.helpInformation());
   }
   if (jsSource != '') {
     const transformed = await Transform.transform(