From b97fccb0af3ff308b477edbd43190f4b429b5a5b Mon Sep 17 00:00:00 2001
From: Alexander Batischev <eual.jp@gmail.com>
Date: Sun, 13 Oct 2019 21:14:52 +0300
Subject: [PATCH] Travis build: invoke `git diff` once

---
 .travis/build.sh | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/.travis/build.sh b/.travis/build.sh
index 7e5ed3799..32201a3c1 100755
--- a/.travis/build.sh
+++ b/.travis/build.sh
@@ -6,11 +6,6 @@ cmake -G Ninja -DCMAKE_BUILD_TYPE=$BUILD_TYPE $EXTRA_CMAKE_FLAGS -DBUILD_TESTING
 # grep returns number of items found. each change is enclosed into <replacement>
 # tag in the xml. Thus if no changes needed, 0 will be returned
 cmake --build . --target clang-format -- -v
-if [[ $(git diff) ]]; then
-    git diff | cat
-    exit 1
-else
-    echo "Success!"
-fi
+git diff --exit-code && echo "Success!" || exit 1
 cmake --build . -- -v || exit 1
 ASAN_OPTIONS=alloc_dealloc_mismatch=0 ctest . || exit 1