Refactor versioning system and enhance build metadata.

Replaced hardcoded versioning with a dynamic CMake-driven system using `Info.h` to embed version, parallelization, and commit metadata directly into the build. Simplified Python version parsing and renamed `LOGGING_LEVEL` to `POLYHEDRAL_GRAVITY_LOGGING_LEVEL` for consistency. Consolidated version management and improved Git commit hash handling.

.gitignore

@@ -3,4 +3,5 @@ cmake-build-*
 build
 polyhedral_gravity.egg-info
 dist
-docs/Doxyfile
+docs/Doxyfile
+src/polyhedralGravity/Info.h

CMakeLists.txt

@@ -7,15 +7,6 @@ set(CMAKE_POSITION_INDEPENDENT_CODE ON)
 # Appends the the module path to contain additional CMake modules for this project
 # and include everything necessary
 list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake)
-include(version)
-include(git)
-
-# Set and Print the Version number
-polyhedral_gravity_parse_version(POLYHEDRAL_GRAVITY_VERSION)
-get_git_commit_hash(POLYHEDRAL_GRAVITY_GIT_HASH)
-message(STATUS "Polyhedral Gravity Version ${POLYHEDRAL_GRAVITY_VERSION}")
-message(STATUS "Polyhedral Gravity Git Hash ${POLYHEDRAL_GRAVITY_GIT_HASH}")
-
 include(CMakeDependentOption)
 
 #####################################
@@ -27,38 +18,30 @@ set(POLYHEDRAL_GRAVITY_PARALLELIZATION "CPP" CACHE STRING "Host parallelization
 set_property(CACHE POLYHEDRAL_GRAVITY_PARALLELIZATION PROPERTY STRINGS CPP, OMP, TBB)
 
 # Set the Logging Level
-set(LOGGING_LEVEL_LIST "TRACE" "DEBUG" "INFO" "WARN" "ERROR" "CRITICAL" "OFF")
-set(LOGGING_LEVEL "INFO" CACHE STRING "Set the Logging level, default (INFO), available options: TRACE, DEBUG, INFO, WARN, ERROR, CRITICAL, OFF")
-set_property(CACHE LOGGING_LEVEL PROPERTY STRINGS ${LOGGING_LEVEL_LIST})
+set(POLYHEDRAL_GRAVITY_LOGGING_LEVEL_LIST "TRACE" "DEBUG" "INFO" "WARN" "ERROR" "CRITICAL" "OFF")
+set(POLYHEDRAL_GRAVITY_LOGGING_LEVEL "INFO" CACHE STRING "Set the Logging level, default (INFO), available options: TRACE, DEBUG, INFO, WARN, ERROR, CRITICAL, OFF")
+set_property(CACHE POLYHEDRAL_GRAVITY_LOGGING_LEVEL PROPERTY STRINGS ${POLYHEDRAL_GRAVITY_LOGGING_LEVEL_LIST})
 # Convert the logging level string to its corresponding number
-list(FIND LOGGING_LEVEL_LIST ${LOGGING_LEVEL} LOGGING_LEVEL_INDEX)
+list(FIND POLYHEDRAL_GRAVITY_LOGGING_LEVEL_LIST ${POLYHEDRAL_GRAVITY_LOGGING_LEVEL} LOGGING_LEVEL_INDEX)
 if (${LOGGING_LEVEL_INDEX} EQUAL -1)
-    message(FATAL_ERROR "Invalid logging level: ${LOGGING_LEVEL}")
+    message(FATAL_ERROR "Invalid logging level: ${POLYHEDRAL_GRAVITY_LOGGING_LEVEL}")
 endif ()
 add_compile_definitions(SPDLOG_ACTIVE_LEVEL=${LOGGING_LEVEL_INDEX})
-message(STATUS "Logging level set to ${LOGGING_LEVEL} (=${LOGGING_LEVEL_INDEX})")
-
-###################################
-# What actually to build? - Options
-###################################
 
+#########################################################
+# What actually to build? - Options, Versions and Output
+#########################################################
 # Build docs
 option(BUILD_POLYHEDRAL_GRAVITY_DOCS "Builds the documentation (Default: OFF)" OFF)
-message(STATUS "BUILD_POLYHEDRAL_GRAVITY_DOCS = ${BUILD_POLYHEDRAL_GRAVITY_DOCS}")
 # Build C++ executable
 option(BUILD_POLYHEDRAL_GRAVITY_EXECUTABLE "Builds the C++ executable (Default: ON)" ON)
-message(STATUS "BUILD_POLYHEDRAL_GRAVITY_EXECUTABLE = ${BUILD_POLYHEDRAL_GRAVITY_EXECUTABLE}")
 # Build library (default ON), if the executable or tests are built this forced to ON
 cmake_dependent_option(BUILD_POLYHEDRAL_GRAVITY_LIBRARY "Builds the library (Default: ON)" ON
         "NOT BUILD_POLYHEDRAL_GRAVITY_EXECUTABLE AND NOT BUILD_POLYHEDRAL_GRAVITY_TESTS" ON)
-message(STATUS "BUILD_POLYHEDRAL_GRAVITY_LIBRARY = ${BUILD_POLYHEDRAL_GRAVITY_LIBRARY}")
 # Option to build the python interface
 option(BUILD_POLYHEDRAL_GRAVITY_PYTHON_INTERFACE "Set this to on if the python interface should be built (Default: ON)" ON)
-message(STATUS "BUILD_POLYHEDRAL_GRAVITY_PYTHON_INTERFACE = ${BUILD_POLYHEDRAL_GRAVITY_PYTHON_INTERFACE}")
 # Option to build tests or not
 option(BUILD_POLYHEDRAL_GRAVITY_TESTS "Set to on if the tests should be built (Default: ON)" ON)
-message(STATUS "BUILD_POLYHEDRAL_GRAVITY_TESTS = ${BUILD_POLYHEDRAL_GRAVITY_TESTS}")
-
 
 IF(_LIBCPP_DISABLE_AVAILABILITY)
     message(STATUS "Disabling availability macros for libc++")
@@ -69,6 +52,21 @@ endif ()
 # Refer to https://github.com/gabime/spdlog/issues/660
 add_compile_definitions(FMT_HEADER_ONLY)
 
+include(git)
+include(version.cmake)
+
+message(STATUS "#################################################################")
+message(STATUS "Polyhedral Gravity Version          ${POLYHEDRAL_GRAVITY_VERSION}")
+message(STATUS "Polyhedral Gravity Commit Hash      ${POLYHEDRAL_GRAVITY_COMMIT_HASH}")
+message(STATUS "Polyhedral Parallelization Backend  ${POLYHEDRAL_GRAVITY_PARALLELIZATION}")
+message(STATUS "Polyhedral Gravity Logging Level    ${POLYHEDRAL_GRAVITY_LOGGING_LEVEL}")
+message(STATUS "#################################################################")
+message(STATUS "Polyhedral Gravity Documentation    ${BUILD_POLYHEDRAL_GRAVITY_DOCS}")
+message(STATUS "Polyhedral Gravity Library          ${BUILD_POLYHEDRAL_GRAVITY_LIBRARY}")
+message(STATUS "Polyhedral Gravity C++ Executable   ${BUILD_POLYHEDRAL_GRAVITY_EXECUTABLE}")
+message(STATUS "Polyhedral Gravity Python Interface ${BUILD_POLYHEDRAL_GRAVITY_PYTHON_INTERFACE}")
+message(STATUS "Polyhedral Gravity Tests            ${BUILD_POLYHEDRAL_GRAVITY_TESTS}")
+message(STATUS "#################################################################")
 #######################################################
 # Including dependencies needed across multiple targets
 #######################################################

README.md

@@ -305,16 +305,16 @@ cmake --build .
 
 The following options are available:
 
-|                                   Name (Default) | Options                                                                                     |
-|-------------------------------------------------:|:--------------------------------------------------------------------------------------------|
-|       POLYHEDRAL_GRAVITY_PARALLELIZATION (`CPP`) | `CPP` = Serial Execution / `OMP` or `TBB` = Parallel Execution with OpenMP or Intel\'s TBB  |
-|                           LOGGING_LEVEL (`INFO`) | `TRACE`, `DEBUG`, `INFO`, `WARN`, `ERROR`, `CRITICAL`, `OFF`                                |
-|            BUILD_POLYHEDRAL_GRAVITY_DOCS (`OFF`) | Build this documentation                                                                    |
-|            BUILD_POLYHEDRAL_GRAVITY_TESTS (`ON`) | Build the Tests                                                                             |
-| BUILD_POLYHEDRAL_GRAVITY_PYTHON_INTERFACE (`ON`) | Build the Python interface                                                                  |
+|                                               Name (Default) | Options                                                                                     |
+|-------------------------------------------------------------:|:--------------------------------------------------------------------------------------------|
+|                   POLYHEDRAL_GRAVITY_PARALLELIZATION (`CPP`) | `CPP` = Serial Execution / `OMP` or `TBB` = Parallel Execution with OpenMP or Intel\'s TBB  |
+|                    POLYHEDRAL_GRAVITY_LOGGING_LEVEL (`INFO`) | `TRACE`, `DEBUG`, `INFO`, `WARN`, `ERROR`, `CRITICAL`, `OFF`                                |
+|                        BUILD_POLYHEDRAL_GRAVITY_DOCS (`OFF`) | Build this documentation                                                                    |
+|                        BUILD_POLYHEDRAL_GRAVITY_TESTS (`ON`) | Build the Tests                                                                             |
+|             BUILD_POLYHEDRAL_GRAVITY_PYTHON_INTERFACE (`ON`) | Build the Python interface                                                                  |
 
 During testing POLYHEDRAL_GRAVITY_PARALLELIZATION=`TBB` has been the most performant.
-It is further not recommend to change the LOGGING_LEVEL to something else than `INFO=2`.
+It is further not recommend to change the POLYHEDRAL_GRAVITY_LOGGING_LEVEL to something else than `INFO=2`.
 
 The recommended CMake settings using the `TBB` backend would look like this:
 

cmake/git.cmake

@@ -1,10 +1,9 @@
-function(get_git_commit_hash OUTPUT_VAR)
-    # Ensure Git is available
-    find_package(Git QUIET REQUIRED)
+find_package(Git QUIET REQUIRED)
 
-    # Run a Git command to get the current commit hash
+function(get_git_commit_hash OUTPUT_VAR)
+    # Run a Git command to get the first 8 characters of the current commit hash
     execute_process(
-            COMMAND ${GIT_EXECUTABLE} rev-parse HEAD
+            COMMAND ${GIT_EXECUTABLE} rev-parse --short=8 HEAD
             WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
             OUTPUT_VARIABLE GIT_COMMIT_HASH
             OUTPUT_STRIP_TRAILING_WHITESPACE
@@ -17,7 +16,31 @@ function(get_git_commit_hash OUTPUT_VAR)
         message(WARNING "Failed to retrieve Git commit hash: ${GIT_ERROR}")
         set(${OUTPUT_VAR} "UNKNOWN" PARENT_SCOPE)
     else()
-        # Pass the hash back to the calling scope
+        # Pass the short hash back to the calling scope
         set(${OUTPUT_VAR} "${GIT_COMMIT_HASH}" PARENT_SCOPE)
     endif()
+endfunction()
+
+function(is_git_working_tree_clean OUTPUT_VAR)
+    # Run a Git command to check if the working tree is clean
+    execute_process(
+            COMMAND ${GIT_EXECUTABLE} diff-index --quiet HEAD --
+            WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+            RESULT_VARIABLE GIT_STATUS_RESULT
+            ERROR_VARIABLE GIT_ERROR
+            ERROR_STRIP_TRAILING_WHITESPACE
+    )
+
+    # Check the result of the Git command
+    if (NOT GIT_ERROR AND GIT_STATUS_RESULT EQUAL 0)
+        # Working tree is clean
+        set(${OUTPUT_VAR} TRUE PARENT_SCOPE)
+    else()
+        # Working tree has uncommitted changes or an error occurred
+        set(${OUTPUT_VAR} FALSE PARENT_SCOPE)
+
+        if (GIT_ERROR)
+            message(WARNING "Error while checking Git working tree: ${GIT_ERROR}")
+        endif()
+    endif()
 endfunction()

docs/quickstart/installation.rst

@@ -91,7 +91,7 @@ The available options are the following:
 Name (Default)                                         Options
 ====================================================== ============================================================================================================
 POLYHEDRAL_GRAVITY_PARALLELIZATION (:code:`CPP`)       :code:`CPP` = Serial Execution / :code:`OMP` or :code:`TBB`  = Parallel Execution with OpenMP or Intel's TBB
-LOGGING_LEVEL (:code:`INFO`)                           :code:`TRACE`, :code:`DEBUG`, :code:`INFO`, :code:`WARN`, :code:`ERROR`, :code:`CRITICAL`, :code:`OFF`
+POLYHEDRAL_GRAVITY_LOGGING_LEVEL (:code:`INFO`)        :code:`TRACE`, :code:`DEBUG`, :code:`INFO`, :code:`WARN`, :code:`ERROR`, :code:`CRITICAL`, :code:`OFF`
 BUILD_POLYHEDRAL_GRAVITY_DOCS (:code:`OFF`)            Build this documentation
 BUILD_POLYHEDRAL_GRAVITY_TESTS (:code:`ON`)            Build the Tests
 BUILD_POLYHEDRAL_GRAVITY_PYTHON_INTERFACE (:code:`ON`) Build the Python interface

setup.py

@@ -18,7 +18,7 @@
     # Modify to change the parallelization (Default value: TBB)
     "POLYHEDRAL_GRAVITY_PARALLELIZATION": "TBB",
     # Default value (INFO=2)
-    "LOGGING_LEVEL": "INFO",
+    "POLYHEDRAL_GRAVITY_LOGGING_LEVEL": "INFO",
     # Not required for the python interface (--> OFF)
     "BUILD_POLYHEDRAL_GRAVITY_DOCS": "OFF",
     # Not required for the python interface (--> OFF)
@@ -54,24 +54,24 @@ def get_cmake_generator():
         return None
 
 def get_version():
-    """Returns the version of the polyhedral gravity package by reading Version.h."""
-    # Construct the path to Version.h relative to the current file
-    version_file = os.path.join(os.path.dirname(__file__), "src", "polyhedralGravity", "Version.h")
+    """Returns the version of the polyhedral gravity package by reading the CMake file."""
+    # Path to the CMake file
+    cmake_file = os.path.join(os.path.dirname(__file__), "version.cmake" )
 
-    # Check if the Version.h file exists
-    if not os.path.exists(version_file):
-        raise FileNotFoundError(f"Version file not found: {version_file}")
+    # Check if the CMake file exists
+    if not os.path.exists(cmake_file):
+        raise FileNotFoundError(f"CMake file not found: {cmake_file}")
 
     # Open and read the file
-    with open(version_file, "r") as file:
+    with open(cmake_file, "r") as file:
         content = file.read()
 
-    # Use regex to extract the version string
-    version_match = re.search(r'POLYHEDRAL_GRAVITY_VERSION\s*=\s*\"([^\"]+)\"', content)
+    # Use regex to extract the PROJECT_VERSION
+    version_match = re.search(r'set\(PROJECT_VERSION\s+([^\s)]+)\)', content)
     if version_match:
         return version_match.group(1)
     else:
-        raise ValueError("Version string not found in Version.h")
+        raise ValueError("Version string not found in CMakeLists.txt")
 
 
 # -----------------------------------------------------------------------------------------

src/main.cpp

@@ -1,16 +1,18 @@
-#include <chrono>
+#include "polyhedralGravity/Info.h"
 #include "polyhedralGravity/input/ConfigSource.h"
 #include "polyhedralGravity/input/YAMLConfigReader.h"
 #include "polyhedralGravity/model/GravityModel.h"
-#include "polyhedralGravity/output/Logging.h"
 #include "polyhedralGravity/output/CSVWriter.h"
-#include "polyhedralGravity/Version.h"
+#include "polyhedralGravity/output/Logging.h"
+#include <chrono>
 
 int main(int argc, char *argv[]) {
     using namespace polyhedralGravity;
 
-    SPDLOG_LOGGER_INFO(PolyhedralGravityLogger::DEFAULT_LOGGER.getLogger(), "Polyhedral Gravity Model Version " + std::string(POLYHEDRAL_GRAVITY_VERSION));
+    SPDLOG_LOGGER_INFO(PolyhedralGravityLogger::DEFAULT_LOGGER.getLogger(), "Polyhedral Gravity Model Version                  " + std::string(POLYHEDRAL_GRAVITY_VERSION));
+    SPDLOG_LOGGER_INFO(PolyhedralGravityLogger::DEFAULT_LOGGER.getLogger(), "Polyhedral Gravity Commit Hash                    " + std::string(POLYHEDRAL_GRAVITY_COMMIT_HASH));
     SPDLOG_LOGGER_INFO(PolyhedralGravityLogger::DEFAULT_LOGGER.getLogger(), "Polyhedral Gravity Model Parallelization Backend: " + std::string(POLYHEDRAL_GRAVITY_PARALLELIZATION));
+    SPDLOG_LOGGER_INFO(PolyhedralGravityLogger::DEFAULT_LOGGER.getLogger(), "Polyhedral Gravity Logging Level                  " + std::string(POLYHEDRAL_GRAVITY_LOGGING_LEVEL));
 
     if (argc != 2) {
         SPDLOG_LOGGER_INFO(PolyhedralGravityLogger::DEFAULT_LOGGER.getLogger(), "Wrong program call! "

src/polyhedralGravity/CMakeLists.txt

@@ -3,4 +3,4 @@ file(GLOB_RECURSE SRC
         "${CMAKE_CURRENT_SOURCE_DIR}/*.h"
         "${CMAKE_CURRENT_SOURCE_DIR}/*.cpp")
 
-add_library(${PROJECT_NAME}_lib OBJECT ${SRC} Version.h)
+add_library(${PROJECT_NAME}_lib OBJECT ${SRC} Info.h)

src/polyhedralGravity/Info.h.in

@@ -0,0 +1,36 @@
+#pragma once
+
+#include <string_view>
+
+// ##########################################################################################
+// Please note! The content of this file is automatically modified by the CMake build system
+// which replaces the variables
+// ##########################################################################################
+
+namespace polyhedralGravity {
+
+    /**
+     * The API version of the polyhedral gravity model's interface.
+     * The value is set by the CMake configuration.
+     */
+    constexpr std::string_view POLYHEDRAL_GRAVITY_VERSION = "@POLYHEDRAL_GRAVITY_VERSION@";
+
+    /**
+     * The API parallelization backend of the polyhedral gravity model's interface.
+     * The value is set by the CMake configuration.
+     */
+    constexpr std::string_view POLYHEDRAL_GRAVITY_PARALLELIZATION = "@POLYHEDRAL_GRAVITY_PARALLELIZATION@";
+
+    /**
+     * The API commit with which it was compiled.
+     * The value is set by the CMake configuration.
+     */
+    constexpr std::string_view POLYHEDRAL_GRAVITY_COMMIT_HASH = "@POLYHEDRAL_GRAVITY_COMMIT_HASH@";
+
+    /**
+     * The API's Loggin Level. Determines the amount of output.
+     * The value is set by the CMake configuration.
+     */
+    constexpr std::string_view POLYHEDRAL_GRAVITY_LOGGING_LEVEL = "@POLYHEDRAL_GRAVITY_LOGGING_LEVEL@";
+
+}// namespace polyhedralGravity

src/polyhedralGravityPython/PolyhedralGravityPython.cpp

@@ -6,11 +6,11 @@
 #include "pybind11/pybind11.h"
 #include "pybind11/stl.h"
 
-#include "polyhedralGravity/model/Polyhedron.h"
-#include "polyhedralGravity/model/GravityModelData.h"
-#include "polyhedralGravity/model/GravityModel.h"
+#include "polyhedralGravity/Info.h"
 #include "polyhedralGravity/model/GravityEvaluable.h"
-#include "polyhedralGravity/Version.h"
+#include "polyhedralGravity/model/GravityModel.h"
+#include "polyhedralGravity/model/GravityModelData.h"
+#include "polyhedralGravity/model/Polyhedron.h"
 
 
 namespace py = pybind11;
@@ -102,8 +102,12 @@ PYBIND11_MODULE(polyhedral_gravity, m) {
 
     Accordingly, the second derivative tensor is defined as the derivative of :math:`\textbf{g}`.
     )mydelimiter";
+
+    // We embedded the version & compilation information into the Python Interface
     m.attr("__version__") = POLYHEDRAL_GRAVITY_VERSION;
     m.attr("__parallelization__") = POLYHEDRAL_GRAVITY_PARALLELIZATION;
+    m.attr("__commit__") = POLYHEDRAL_GRAVITY_COMMIT_HASH;
+    m.attr("__logging__") = POLYHEDRAL_GRAVITY_LOGGING_LEVEL;
 
     py::enum_<NormalOrientation>(m, "NormalOrientation", R"mydelimiter(
         The orientation of the plane unit normals of the polyhedron.

version.cmake

@@ -0,0 +1,18 @@
+# Modify the version with a new release
+set(PROJECT_VERSION 3.2.1)
+set(POLYHEDRAL_GRAVITY_VERSION ${PROJECT_VERSION})
+
+# Get the Git information
+get_git_commit_hash(POLYHEDRAL_GRAVITY_COMMIT_HASH)
+is_git_working_tree_clean(POLYHEDRAL_GRAVITY_WORKING_TREE)
+
+# Append "-modified" to the commit hash if the working tree is not clean
+if (NOT ${POLYHEDRAL_GRAVITY_WORKING_TREE})
+    set(POLYHEDRAL_GRAVITY_COMMIT_HASH "${POLYHEDRAL_GRAVITY_COMMIT_HASH}+modified")
+endif ()
+
+# Configure the output header file
+configure_file(
+        "${CMAKE_CURRENT_SOURCE_DIR}/src/polyhedralGravity/Info.h.in"
+        "${CMAKE_CURRENT_SOURCE_DIR}/src/polyhedralGravity/Info.h"
+)