cli: Add better error message if a patch failed

Signed-off-by: Marcus Eide <eide@spotify.com>
2023-02-22 10:45:17 +01:00
parent c07c3b7364
commit 284810a0a1
1 changed files with 6 additions and 0 deletions
@@ -32,6 +32,12 @@ export const patch = async (patchFile: string) => {
  const targetFile = path.join(targetRoot, targetName);
  const oldContent = await fs.readFile(targetFile, 'utf8');
  const newContent = differ.applyPatch(oldContent, patchContent);
+  if (!newContent) {
+    throw new Error(
+      `Patch ${patchFile} was not applied correctly.
+       Did you change ${targetName} manually before running this command?`,
+    );
+  }

  return await fs.writeFile(targetFile, newContent, 'utf8');
 };