From 3ffd653d2d3a513d3f0a4ef956423d4609d3c92d Mon Sep 17 00:00:00 2001
From: Horror Proton <107091537+horror-proton@users.noreply.github.com>
Date: Wed, 19 Oct 2022 00:48:43 +0800
Subject: [PATCH] chore: define `MAA_VERSION` automatically in CMake

---
 CMakeLists.txt | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index d249113765..d5ae67a300 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -90,3 +90,43 @@ if (BUILD_XCFRAMEWORK)
         DEPENDS MeoAssistant MeoAssistant.xcframework
     )
 endif (BUILD_XCFRAMEWORK)
+
+# define MAA_VERSION from git
+if (NOT MAA_VERSION)
+    find_package(Git)
+endif ()
+if (GIT_FOUND)
+    execute_process(
+        COMMAND "${GIT_EXECUTABLE}" describe --tags --dirty --broken --abbrev=40
+        WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
+        RESULT_VARIABLE result
+        OUTPUT_VARIABLE output
+        ERROR_VARIABLE err
+        OUTPUT_STRIP_TRAILING_WHITESPACE
+    )
+    if (result EQUAL 0)
+        set(MAA_VERSION "${output}")
+    else ()
+        message(WARNING "git describe returning ${result}, output:\n${err}")
+    endif()
+endif ()
+if (NOT MAA_VERSION AND GIT_FOUND)
+    execute_process(
+        COMMAND "${GIT_EXECUTABLE}" rev-parse HEAD
+        WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
+        RESULT_VARIABLE result
+        OUTPUT_VARIABLE output
+        ERROR_VARIABLE err
+        OUTPUT_STRIP_TRAILING_WHITESPACE
+    )
+    if (result EQUAL 0)
+        set(MAA_VERSION "${output}")
+    else ()
+        message(WARNING "git rev-parse returning ${result}, output:\n${err}")
+    endif ()
+endif ()
+if (NOT MAA_VERSION)
+    set(MAA_VERSION "DEBUG VERSION")
+endif ()
+message(STATUS "MAA_VERSION=${MAA_VERSION}")
+add_compile_definitions(MAA_VERSION="${MAA_VERSION}")