From c327f9f1efae6ab16422a4ac2bb3c548b5ca6536 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Se=CC=81rgio=20Ramos?= <mail@sergioramos.me>
Date: Fri, 26 May 2017 12:02:19 +0100
Subject: [PATCH] chore: handle empty files array in format-staged

if format-staged is run and after filtering by opt-out no files are left, it tries to format everything
---
 scripts/format | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/scripts/format b/scripts/format
index 8c8113e6..f2edb54a 100755
--- a/scripts/format
+++ b/scripts/format
@@ -31,6 +31,12 @@ const filter = (files = []) =>
     .filter(file => !optOut.some(pkg => file.indexOf(pkg) === 0));
 
 const run = async (files = []) => {
+  const filteredFiles = filter(files);
+
+  if (!filteredFiles.length) {
+    return;
+  }
+
   const cp = execa(
     'prettier',
     ['--write', '--single-quote'].concat(filter(files))