From 24cccb0a775f3f5cd39988529e86019517a3570a Mon Sep 17 00:00:00 2001
From: Aki <please@ignore.pl>
Date: Sat, 17 Feb 2024 21:04:48 +0100
Subject: Regenerate version.txt on each commit

---
 CMakeLists.txt                            |  3 ++-
 cmake/modules/AddVersionFile.cmake        | 15 +++++++++++++++
 cmake/modules/generate_version_file.cmake |  3 +++
 3 files changed, 20 insertions(+), 1 deletion(-)
 create mode 100644 cmake/modules/AddVersionFile.cmake
 create mode 100644 cmake/modules/generate_version_file.cmake

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8797278..0bca9e2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,6 +3,7 @@ set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_EXTENSIONS Yes)
 set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules")
 project(Starshatter)
+include(AddVersionFile)
 include(GitDescribe)
 if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
 	if(CMAKE_HOST_SYSTEM_NAME MATCHES Windows)
@@ -28,7 +29,7 @@ add_subdirectory(NetEx)
 add_subdirectory(Starserver)
 add_subdirectory(StarsEx)
 add_subdirectory(Starshatter)
-configure_file(version.txt.conf ${CMAKE_CURRENT_BINARY_DIR}/version.txt @ONLY)
+add_version_file(version.txt version.txt.conf)
 install(
 	FILES NOTICE COPYING
 	COMPONENT Copyright
diff --git a/cmake/modules/AddVersionFile.cmake b/cmake/modules/AddVersionFile.cmake
new file mode 100644
index 0000000..67b3371
--- /dev/null
+++ b/cmake/modules/AddVersionFile.cmake
@@ -0,0 +1,15 @@
+set(ADD_VERSION_FILE_DIR "${CMAKE_CURRENT_LIST_DIR}")
+function(add_version_file OUTPUT TEMPLATE)
+	add_custom_target(
+		${OUTPUT}
+		ALL
+		BYPRODUCTS "${CMAKE_CURRENT_BINARY_DIR}/${OUTPUT}"
+		DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/${TEMPLATE}"
+		WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
+		COMMAND
+			cmake
+			-DCMAKE_MODULE_PATH='${ADD_VERSION_FILE_DIR}'
+			-DOUTPUT='${CMAKE_CURRENT_BINARY_DIR}/${OUTPUT}'
+			-DTEMPLATE='${CMAKE_CURRENT_SOURCE_DIR}/${TEMPLATE}'
+			-P "${ADD_VERSION_FILE_DIR}/generate_version_file.cmake")
+endfunction()
diff --git a/cmake/modules/generate_version_file.cmake b/cmake/modules/generate_version_file.cmake
new file mode 100644
index 0000000..e8d8196
--- /dev/null
+++ b/cmake/modules/generate_version_file.cmake
@@ -0,0 +1,3 @@
+include(GitDescribe)
+git_describe(STARSHATTER_VERSION)
+configure_file("${TEMPLATE}" "${OUTPUT}" @ONLY)
-- 
cgit v1.1