From 6c38d3ecab7cc424e02fa7ad0f57a627bcaff06f Mon Sep 17 00:00:00 2001
From: pajlada <rasmus.karlsson@pajlada.com>
Date: Sun, 5 Jun 2022 16:44:20 +0200
Subject: [PATCH] Add the ability to skip generation of git and date data
 (#3800)

This can be done by setting the `CHATTERINO_SKIP_DATE_GEN` and `CHATTERINO_SKIP_GIT_GEN` environment variables
---
 cmake/GIT.cmake    | 4 ++++
 src/CMakeLists.txt | 6 +++++-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/cmake/GIT.cmake b/cmake/GIT.cmake
index e5afb582d..53cd14534 100644
--- a/cmake/GIT.cmake
+++ b/cmake/GIT.cmake
@@ -19,6 +19,10 @@ set(GIT_COMMIT "GIT-REPOSITORY-NOT-FOUND")
 set(GIT_RELEASE "${PROJECT_VERSION}")
 set(GIT_MODIFIED 0)
 
+if (DEFINED ENV{CHATTERINO_SKIP_GIT_GEN})
+    return()
+endif ()
+
 if (GIT_EXECUTABLE)
     execute_process(
             COMMAND ${GIT_EXECUTABLE} rev-parse --is-inside-work-tree
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 4372a3d19..32f38dc1c 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -622,7 +622,11 @@ set_target_properties(${LIBRARY_PROJECT}
 # compilation in CMake is a more involved, as documented in https://stackoverflow.com/q/24292898.
 # For CI runs, however, the date of build file generation should be consistent with the date of
 # compilation so this approximation is "good enough" for our purpose.
-string(TIMESTAMP cmake_gen_date "%Y-%m-%d")
+if (DEFINED ENV{CHATTERINO_SKIP_DATE_GEN})
+    set(cmake_gen_date "1970-01-01")
+else ()
+    string(TIMESTAMP cmake_gen_date "%Y-%m-%d")
+endif ()
 
 target_compile_definitions(${LIBRARY_PROJECT} PUBLIC
     CHATTERINO