From 977f13967fbd0bc1790c75fc652086a1de097ad4 Mon Sep 17 00:00:00 2001
From: Arthur Sonzogni <sonzogniarthur@gmail.com>
Date: Sun, 22 Nov 2020 13:23:01 +0100
Subject: [PATCH] Fix CMake when git is not found. (#64)

Fix: https://github.com/ArthurSonzogni/FTXUI/issues/62
---
 CMakeLists.txt | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1b891926..12aa9203 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,11 +1,17 @@
 cmake_minimum_required(VERSION 3.0)
 
-execute_process(
-  COMMAND git rev-list --count HEAD
-  WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-  OUTPUT_VARIABLE git_version
-  OUTPUT_STRIP_TRAILING_WHITESPACE
-)
+find_package(Git QUIET)
+if (Git_FOUND)
+  message("git found")
+  execute_process(
+    COMMAND ${GIT_EXECUTABLE} rev-list --count HEAD
+    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+    OUTPUT_VARIABLE git_version
+    OUTPUT_STRIP_TRAILING_WHITESPACE
+  )
+else()
+  set(git_version 0)
+endif()
 
 project(ftxui
   LANGUAGES CXX