print version info from git describe

.github/workflows/cmake.yml

@@ -37,6 +37,8 @@ jobs:
 
  steps:
  - uses: actions/checkout@v3
+ with:
+ fetch-depth: 0
  - uses: lukka/get-cmake@latest
 
  - name: CMake Configure

CMakeLists.txt

@@ -1,4 +1,6 @@
 # drp022521 - reduced from 3.14 to 3.8 for VS2017 support
+# dbl051923 - capture git describe for banner
+
 cmake_minimum_required (VERSION 3.8)
 
 set(CMAKE_CXX_STANDARD 14)
@@ -7,6 +9,15 @@ set(CMAKE_CXX_EXTENSIONS OFF)
 
 project(bmai)
 
+# Get the latest git tag and short commit hash
+execute_process(
+ COMMAND git describe --dirty --always --tags
+ WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}
+ OUTPUT_VARIABLE GIT_DESCRIBE
+ OUTPUT_STRIP_TRAILING_WHITESPACE
+)
+add_definitions("-DGIT_DESCRIBE=\"${GIT_DESCRIBE}\"")
+
 # to collect only needed source files
 set(SOURCE ./src/bmai.cpp ./src/bmai_ai.cpp ./src/player.cpp ./src/stats.cpp)
 

src/bmai.cpp

@@ -4114,7 +4114,7 @@ int main(int argc, char *argv[])
  //g_ai.SetQAI(&g_ai_mode0);
 
  // banner
- printf("BMAI: the Button Men AI\nCopyright (c) 2001-2023, Denis Papp.\nFor information, contact Denis Papp, denis@accessdenied.net\n");
+ printf("BMAI: the Button Men AI\nCopyright (c) 2001-2023, Denis Papp.\nFor information, contact Denis Papp, denis@accessdenied.net\nVersion: %s\n", GIT_DESCRIBE);
 
  //g_parser.SetupTestGame();
  if (argc>1)

src/bmai.h

@@ -48,6 +48,11 @@ typedef float F32;
 // special types
 typedef std::vector<float> BMC_FloatVector;
 
+// version number
+#ifndef GIT_DESCRIBE
+#define GIT_DESCRIBE "n/a"
+#endif
+
 // assert
 #define BM_ASSERT assert
 #define BM_ERROR(check) { if (!(check)) { BMF_Error(#check); } }