Update cmake and make build and conan

.gitignore

@@ -63,3 +63,4 @@ conandeps*.cmake
 Find*.cmake
 module-*.cmake
 CMakeUserPresets.json
+.claude

CMakeLists.txt

@@ -1,6 +1,7 @@
 cmake_minimum_required(VERSION 3.20)
 
 project(Folding
+  VERSION 1.1.1
   DESCRIPTION "Folding utility for BayesNet library"
   HOMEPAGE_URL "https://github.com/rmontanana/folding"
   LANGUAGES CXX
@@ -25,6 +26,10 @@ SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pthread")
 # -------
 option(ENABLE_TESTING "Unit testing build" OFF)
 
+# Subdirectories
+# --------------
+add_subdirectory(config)
+
 # Testing
 # -------
 if (ENABLE_TESTING)
@@ -39,3 +44,55 @@ endif (ENABLE_TESTING)
 # Library
 # --------
 add_library(folding INTERFACE folding.hpp)
+
+target_include_directories(folding INTERFACE
+    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
+    $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/configured_files/include>
+    $<INSTALL_INTERFACE:include>
+)
+
+# Install
+# -------
+install(TARGETS folding EXPORT FoldingTargets
+  INCLUDES DESTINATION include
+)
+install(EXPORT FoldingTargets
+  FILE FoldingTargets.cmake
+  NAMESPACE Folding::
+  DESTINATION lib/cmake/Folding
+)
+
+# Install the main header file
+install(FILES folding.hpp
+  DESTINATION include
+)
+
+# Install the generated configuration header
+install(FILES "${CMAKE_CURRENT_BINARY_DIR}/configured_files/include/folding_config.h"
+  DESTINATION include
+)
+
+# Install documentation files
+install(FILES LICENSE README.md
+  DESTINATION share/doc/Folding
+)
+
+# Create and install package configuration files
+include(CMakePackageConfigHelpers)
+write_basic_package_version_file(
+  "${CMAKE_CURRENT_BINARY_DIR}/FoldingConfigVersion.cmake"
+  VERSION ${PROJECT_VERSION}
+  COMPATIBILITY AnyNewerVersion
+)
+
+configure_package_config_file(
+  "${CMAKE_CURRENT_SOURCE_DIR}/cmake/FoldingConfig.cmake.in"
+  "${CMAKE_CURRENT_BINARY_DIR}/FoldingConfig.cmake"
+  INSTALL_DESTINATION lib/cmake/Folding
+)
+
+install(FILES
+  "${CMAKE_CURRENT_BINARY_DIR}/FoldingConfig.cmake"
+  "${CMAKE_CURRENT_BINARY_DIR}/FoldingConfigVersion.cmake"
+  DESTINATION lib/cmake/Folding
+)

cmake/FoldingConfig.cmake.in

@@ -0,0 +1,5 @@
+@PACKAGE_INIT@
+
+include("${CMAKE_CURRENT_LIST_DIR}/FoldingTargets.cmake")
+
+check_required_components(Folding)

conanfile.py

@@ -1,22 +1,39 @@
 import re
 from conan import ConanFile
 from conan.tools.files import copy
-from conan.tools.cmake import cmake_layout
+from conan.tools.cmake import CMakeToolchain, CMakeDeps
 
 
 class FoldingConan(ConanFile):
     name = "folding"
-    version = "1.1.1"
+    version = "X.X.X"
     description = "K-Fold and stratified K-Fold header-only library"
     url = "https://github.com/rmontanana/folding"
     license = "MIT"
     homepage = "https://github.com/rmontanana/folding"
     topics = ("kfold", "stratified folding", "mdlp")
     no_copy_source = True
-    exports_sources = "folding.hpp"
+    exports_sources = (
+        "folding.hpp",
+        "LICENSE",
+        "README.md",
+        "CMakeLists.txt",
+        "config/*",
+        "cmake/*",
+    )
     package_type = "header-library"
-    settings = "os", "compiler", "build_type", "arch"
-    generators = "CMakeDeps", "CMakeToolchain"
+    settings = "build_type", "compiler", "arch", "os"
+
+    def init(self):
+        # Read the CMakeLists.txt file to get the version
+        with open("CMakeLists.txt", "r") as f:
+            lines = f.readlines()
+        for line in lines:
+            if "VERSION" in line:
+                # Extract the version number using regex
+                match = re.search(r"VERSION\s+(\d+\.\d+\.\d+)", line)
+                if match:
+                    self.version = match.group(1)
 
     def requirements(self):
         self.requires("libtorch/2.7.1")
@@ -25,15 +42,79 @@ class FoldingConan(ConanFile):
         self.tool_requires("cmake/[>=3.15]")
         # Test dependencies
         self.test_requires("catch2/3.8.1")
-        self.test_requires("arff-files/1.2.0")
+        self.test_requires("arff-files/1.2.1")
         self.test_requires("fimdlp/2.1.0")
 
     def layout(self):
-        cmake_layout(self)
+        # Only use cmake_layout for conan packaging, not for development builds
+        # This can be detected by checking if we're in a conan cache folder
+        if (
+            hasattr(self, "folders")
+            and hasattr(self.folders, "base_build")
+            and self.folders.base_build
+            and ".conan2" in self.folders.base_build
+        ):
+            from conan.tools.cmake import cmake_layout
+
+            cmake_layout(self)
+
+    def generate(self):
+        # Generate CMake toolchain file
+        tc = CMakeToolchain(self)
+        tc.generate()
+
+        # Generate CMake dependencies file (needed for test requirements like catch2)
+        deps = CMakeDeps(self)
+        deps.generate()
+
+    def build(self):
+        # Use CMake to generate the config file through existing config system
+        from conan.tools.cmake import CMake
+
+        cmake = CMake(self)
+        # Configure with minimal options - just enough to generate the config file
+        cmake.configure(
+            build_script_folder=None,
+            cli_args=["-DENABLE_TESTING=OFF"],
+        )
+        # No need to build anything, just configure to generate the config file
 
     def package(self):
-        copy(self, "*.hpp", src=self.source_folder, dst=self.package_folder)
+        # Copy header file
+        copy(
+            self,
+            "folding.hpp",
+            src=self.source_folder,
+            dst=self.package_folder,
+            keep_path=False,
+        )
+        # Copy the generated config file from CMake build folder
+        copy(
+            self,
+            "folding_config.h",
+            src=f"{self.build_folder}/configured_files/include",
+            dst=self.package_folder,
+            keep_path=False,
+        )
+        # Copy license and readme for package documentation
+        copy(
+            self,
+            "LICENSE",
+            src=self.source_folder,
+            dst=self.package_folder,
+            keep_path=False,
+        )
+        copy(
+            self,
+            "README.md",
+            src=self.source_folder,
+            dst=self.package_folder,
+            keep_path=False,
+        )
 
     def package_info(self):
+        # Header-only library configuration
         self.cpp_info.bindirs = []
         self.cpp_info.libdirs = []
+        # Set include directory (header will be in package root)
+        self.cpp_info.includedirs = ["."]

config/CMakeLists.txt

@@ -0,0 +1,4 @@
+configure_file(
+  "config.h.in"
+  "${CMAKE_BINARY_DIR}/configured_files/include/folding_config.h" ESCAPE_QUOTES
+)

config/config.h.in

@@ -0,0 +1,12 @@
+#pragma once
+
+#define FOLDING_VERSION_MAJOR @PROJECT_VERSION_MAJOR@
+#define FOLDING_VERSION_MINOR @PROJECT_VERSION_MINOR@
+#define FOLDING_VERSION_PATCH @PROJECT_VERSION_PATCH@
+
+#define FOLDING_VERSION "@PROJECT_VERSION@"
+
+static constexpr std::string_view folding_project_name = "@PROJECT_NAME@";
+static constexpr std::string_view folding_project_version = "@PROJECT_VERSION@";
+static constexpr std::string_view folding_project_description = "@PROJECT_DESCRIPTION@";
+static constexpr std::string_view folding_data_path = "@Folding_SOURCE_DIR@/tests/data/";