From 9344d3610acdcc1880a091db48d5d23f9d0d070a Mon Sep 17 00:00:00 2001
From: Antoine Pelisse <apelisse@google.com>
Date: Tue, 16 Jan 2018 09:15:55 -0800
Subject: [PATCH] pre-commit: Check gofmt output for errors

gofmt doesn't return an error exit code when it fails (because some
files are improperly formatted). Make sure that the output is empty
instead.
---
 pre-commit.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pre-commit.sh b/pre-commit.sh
index 4ebd8824c..d541eff4c 100755
--- a/pre-commit.sh
+++ b/pre-commit.sh
@@ -15,7 +15,7 @@ go_dirs() {
 }
 
 echo "Running go fmt"
-go_dirs | xargs -0 gofmt -s -d -l
+diff <(echo -n) <(go_dirs | xargs -0 gofmt -s -d -l)
 rc=$((rc || $?))
 
 echo "Running goimports"