Merge pull request #12 from StephanKa/feature/add-configured-file-versioning

added example for versioning

Author: StephanKa

CMakeLists.txt

@@ -1,12 +1,23 @@
 cmake_minimum_required(VERSION 3.15)
 
 # Set the project name to your project name, my project isn't very descriptive
-project(myproject CXX)
+project(myproject
+        LANGUAGES CXX
+        VERSION 0.0.1)
+
 include(cmake/StandardProjectSettings.cmake)
 include(cmake/PreventInSourceBuilds.cmake)
-
 include(cmake/CodeFormat.cmake)
 
+execute_process(
+        COMMAND git log -1 --format=%h
+        WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}
+        OUTPUT_VARIABLE GIT_HASH
+        OUTPUT_STRIP_TRAILING_WHITESPACE
+)
+
+configure_file("templates/version.hpp.in" "${CMAKE_BINARY_DIR}/generated/include/version.hpp" ESCAPE_QUOTES)
+
 # Link this 'library' to set the c++ standard / compile-time options requested
 add_library(project_options INTERFACE)
 target_compile_features(project_options INTERFACE cxx_std_17)

src/CMakeLists.txt

@@ -30,3 +30,5 @@ TARGET_LINK_LIBRARIES(
         CONAN_PKG::docopt.cpp
         CONAN_PKG::fmt
         CONAN_PKG::spdlog)
+
+TARGET_INCLUDE_DIRECTORIES(intro PRIVATE ${CMAKE_BINARY_DIR}/generated)

src/main.cpp

@@ -3,6 +3,7 @@
 
 #include <spdlog/spdlog.h>
 #include <docopt/docopt.h>
+#include "include/version.hpp"
 
 static constexpr auto USAGE =
   R"(Naval Fate.
@@ -24,6 +25,8 @@ static constexpr auto USAGE =
 
 int main(int argc, const char **argv)
 {
+  fmt::print("Version\nMajor {}\nMinor {}\nPatch {}\nGit Hash {}\n", Version::Major, Version::Minor, Version::Patch, Version::GitHash);
+
   std::map<std::string, docopt::value> args = docopt::docopt(USAGE,
     { std::next(argv), std::next(argv, argc) },
     true,// show help if requested

templates/version.hpp.in

@@ -0,0 +1,9 @@
+#pragma once
+
+struct Version
+{
+    static constexpr uint32_t Major {@PROJECT_VERSION_MAJOR@};
+    static constexpr uint32_t Minor {@PROJECT_VERSION_MINOR@};
+    static constexpr uint32_t Patch {@PROJECT_VERSION_PATCH@};
+    static constexpr std::string_view GitHash {"@GIT_HASH@"};
+};