From 7a528d7248a70aff1c54e5f508de56bfffbf24c3 Mon Sep 17 00:00:00 2001
From: Antoine Fontaine <antoine.fontaine@epfl.ch>
Date: Thu, 10 Feb 2022 22:14:17 +0100
Subject: [PATCH] Make git dependency optional if GIT_VERSION is set

---
 CMakeLists.txt | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index be945731..d865faf5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -148,19 +148,21 @@ set(RADIANT_VERSION "${RADIANT_VERSION_MAJOR}.${RADIANT_VERSION_MINOR}.${RADIANT
 
 set(RADIANT_ABOUTMSG "Custom build" CACHE STRING "About message")
 
-find_package(Git REQUIRED)
+set(RADIANT_VERSION_STRING "${RADIANT_VERSION}n")
 
-execute_process(
-     COMMAND ${GIT_EXECUTABLE} rev-parse --short HEAD
-     WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
-     OUTPUT_VARIABLE GIT_VERSION
-     OUTPUT_STRIP_TRAILING_WHITESPACE
-)
+if (NOT DEFINED GIT_VERSION)
+     find_package(Git REQUIRED)
 
-set(RADIANT_VERSION_STRING "${RADIANT_VERSION}n")
+     execute_process(
+          COMMAND ${GIT_EXECUTABLE} rev-parse --short HEAD
+          WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
+          OUTPUT_VARIABLE GIT_VERSION
+          OUTPUT_STRIP_TRAILING_WHITESPACE
+     )
 
-if (GIT_VERSION)
-    set(RADIANT_VERSION_STRING "${RADIANT_VERSION_STRING}-git-${GIT_VERSION}")
+     if (GIT_VERSION)
+         set(RADIANT_VERSION_STRING "${RADIANT_VERSION_STRING}-git-${GIT_VERSION}")
+     endif ()
 endif ()
 
 message(STATUS "Building ${PROJECT_NAME} ${RADIANT_VERSION_STRING} ${RADIANT_ABOUTMSG}")
-- 
2.39.2