feat: register a simple cpack deferred execution (#120)

Add a cpack module to be included when directory CMAKE_SOURCE_DIR ends.

Signed-off-by: msclock <msclock@qq.com>

cmake/ProjectDefault.cmake

@@ -23,3 +23,13 @@ cmake_language(DEFER DIRECTORY ${CMAKE_SOURCE_DIR} CALL show_project_version)
 cmake_language(DEFER DIRECTORY ${CMAKE_SOURCE_DIR} CALL
                show_vcpkg_configuration)
 cmake_language(DEFER DIRECTORY ${CMAKE_SOURCE_DIR} CALL show_installation)
+
+# Cpack
+set(__cpack_cmake_module
+    ${CMAKE_CURRENT_LIST_DIR}/install/Cpack.cmake
+    CACHE
+      INTERNAL
+      "Cpack module path to be included when directory CMAKE_SOURCE_DIR ends"
+      FORCE)
+cmake_language(DEFER DIRECTORY ${CMAKE_SOURCE_DIR} CALL include
+               ${__cpack_cmake_module})

cmake/install/Cpack.cmake

@@ -0,0 +1,38 @@
+#[[
+Package generation using CPack
+
+References:
+  - https://github.com/MangaD/cpp-project-template/blob/main/cmake/cpack_module.cmake
+  - https://github.com/gabime/spdlog/blob/v1.x/cmake/spdlogCPack.cmake
+  - https://github.com/retifrav/cmake-cpack-example/tree/master
+]]
+include_guard(GLOBAL)
+
+set(CPACK_RESOURCE_FILE_README
+    "${CMAKE_CURRENT_SOURCE_DIR}/README.md"
+    CACHE STRING "Readme")
+set(CPACK_RESOURCE_FILE_LICENSE
+    "${CMAKE_CURRENT_SOURCE_DIR}/LICENSE"
+    CACHE STRING "License")
+set(CPACK_SOURCE_GENERATOR
+    "TGZ;ZIP"
+    CACHE STRING "Source generator")
+set(CPACK_PACKAGE_VERSION
+    ${CMAKE_PROJECT_VERSION_MAJOR}.${CMAKE_PROJECT_VERSION_MINOR}.${CMAKE_PROJECT_VERSION_PATCH}
+)
+if(CMAKE_PROJECT_VERSION_TWEAK)
+  set(CPACK_PACKAGE_VERSION
+      ${CPACK_PACKAGE_VERSION}.${CMAKE_PROJECT_VERSION_TWEAK})
+endif()
+# cmake-format: off
+set(CPACK_SOURCE_IGNORE_FILES
+  /.git
+  /dist
+  /.*build.*
+  /out
+  /\\\\.DS_Store
+  CACHE STRING "CPack source ignore files"
+)
+# cmake-format: on
+
+include(CPack)