From fe58e8bdebd01837485aff7aa233aa694f2ea7ad Mon Sep 17 00:00:00 2001
From: Paul Romano <paul.k.romano@gmail.com>
Date: Tue, 4 Mar 2014 20:13:47 -0500
Subject: [PATCH] Replace pipeline for producing git SHA1 with single command.

---
 src/CMakeLists.txt | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 40586ca23b..dd0bcaaa05 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -156,9 +156,7 @@ endif()
 # git SHA1 hash
 #===============================================================================
 
-execute_process(COMMAND git log -1
-                COMMAND head -n 1
-                COMMAND cut -c8-
+execute_process(COMMAND git rev-parse -q HEAD
                 WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
                 RESULT_VARIABLE GIT_SHA1_SUCCESS
                 OUTPUT_VARIABLE GIT_SHA1