From c11a4c594e875c18c87008041a8513a074745ad8 Mon Sep 17 00:00:00 2001
From: Cai Yudong <yudong.cai@zilliz.com>
Date: Sat, 7 Dec 2019 17:00:21 +0800
Subject: [PATCH] #709 handle the case when git fail to get last commit id
 (#723)

---
 core/CMakeLists.txt | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/core/CMakeLists.txt b/core/CMakeLists.txt
index 0b02109bf..760a32fdb 100644
--- a/core/CMakeLists.txt
+++ b/core/CMakeLists.txt
@@ -69,10 +69,11 @@ GET_LAST_COMMIT_ID(LAST_COMMIT_ID)
 message(STATUS "LAST_COMMIT_ID = ${LAST_COMMIT_ID}")
 if (NOT LAST_COMMIT_ID STREQUAL "")
     string(REGEX REPLACE "\n" "" LAST_COMMIT_ID ${LAST_COMMIT_ID})
+    set(LAST_COMMIT_ID "${LAST_COMMIT_ID}")
+else ()
+    set(LAST_COMMIT_ID "Unknown")
 endif ()
 
-set(LAST_COMMIT_ID "${LAST_COMMIT_ID}")
-
 # set build type
 if (CMAKE_BUILD_TYPE STREQUAL "Release")
     set(BUILD_TYPE "Release")
-- 
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