From 3b58a1c18ccc27e0d363b86dfeb714e06eb0f77a Mon Sep 17 00:00:00 2001
From: Kefu Chai <kchai@redhat.com>
Date: Thu, 8 Feb 2018 12:04:08 +0800
Subject: [PATCH] vstart.sh: introduce get_cmake_variable()

Signed-off-by: Kefu Chai <kchai@redhat.com>
---
 src/vstart.sh | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/vstart.sh b/src/vstart.sh
index ba2e87f8887..33010abb81c 100755
--- a/src/vstart.sh
+++ b/src/vstart.sh
@@ -16,10 +16,15 @@ if [ -n "$VSTART_DEST" ]; then
   CEPH_OUT_DIR=$VSTART_DEST/out
 fi
 
+get_cmake_variable() {
+    local variable=$1
+    grep "$variable" CMakeCache.txt | cut -d "=" -f 2
+}
+
 # for running out of the CMake build directory
 if [ -e CMakeCache.txt ]; then
   # Out of tree build, learn source location from CMakeCache.txt
-  CEPH_ROOT=`grep ceph_SOURCE_DIR CMakeCache.txt | cut -d "=" -f 2`
+  CEPH_ROOT=$(get_cmake_variable ceph_SOURCE_DIR)
   CEPH_BUILD_DIR=`pwd`
   [ -z "$MGR_PYTHON_PATH" ] && MGR_PYTHON_PATH=$CEPH_ROOT/src/pybind/mgr
 fi