From 0e00d6394c49c6a69a9ac4418ba77719d5f44e02 Mon Sep 17 00:00:00 2001
From: Hugo Levy-Falk <hugo@klafyvel.me>
Date: Thu, 25 Jul 2024 10:08:18 +0200
Subject: [PATCH] fix(readme): Add a test for empty file list in git hook.

As it was, the proposed git hook will fail if no Julia file has been
edited in the commit (for example if we only edited Project.toml).
---
 README.md | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 5015113..c6ee030 100644
--- a/README.md
+++ b/README.md
@@ -213,7 +213,10 @@ exec 1>&2
 
 # Run Runic on added and modified files
 mapfile -t files < <(git diff-index --name-only --diff-filter=AM master | grep '\.jl$')
-julia --project=@runic -m Runic --check --diff "${files[@]}"
+
+if [ ! -z "${files}" ]; then
+    julia --project=@runic -m Runic --check --diff "${files[@]}"
+fi
 ```
 
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