feat: Add cmake.py for easier location of the cmake helper files.

.gitignore

@@ -2,5 +2,4 @@
 **/.mypy_cache
 **/__pycache__
 **/build
-ccgen.*
 dist

README.md

@@ -14,11 +14,13 @@ pip install -U git+https://github.com/BraynStorm/ccgen
 ```
 
 ## Usage
-Set your CMake Module Path like this:
-```
--DCMAKE_MODULE_PATH=%LOCALAPPDATA%\Python\PythonXXX\Lib\site-packages\ccgen\share\cmake
+Use the following snippet in your top-level CMakeLists.txt
+```cmake
+find_package(Python3 REQUIRED COMPONENTS Interpreter)
+execute_process(COMMAND ${Python3_EXECUTABLE} -m ccgen.cmake OUTPUT_VARIABLE CCGEN_CMAKE OUTPUT_STRIP_TRAILING_WHITESPACE)
+list(APPEND CMAKE_MODULE_PATH "${CCGEN_CMAKE}")
+include(ccgen)
 ```
-on Windows or the equivalent on your operating system.
 ## Example CMake project
 See the examples/ folder for full examples.
 
@@ -44,10 +46,13 @@ enums:
 
 ### CMakeLists.txt
 ```cmake
-cmake_minimum_required(VERSION 3.15)
+cmake_minimum_required(VERSION 3.23)
 
 project(MyProject)
 
+find_package(Python3 REQUIRED COMPONENTS Interpreter)
+execute_process(COMMAND ${Python3_EXECUTABLE} -m ccgen.cmake OUTPUT_VARIABLE CCGEN_CMAKE OUTPUT_STRIP_TRAILING_WHITESPACE)
+list(APPEND CMAKE_MODULE_PATH "${CCGEN_CMAKE}")
 include(ccgen)
 
 # Important: Name your YAML files *.ccgen.yaml

ccgen/cmake.py

@@ -0,0 +1,3 @@
+from pathlib import Path
+
+print(Path(__file__).parent / "share" / "cmake")

ccgen/share/cmake/ccgen.cmake

@@ -0,0 +1,39 @@
+# Auxiliary file for CCGEN in Cmake
+# 
+# Provides a ccgen(...) function to compile all *.ccgen.yaml files to a .c/.h pair
+# Usage: after you define your target do:
+#   include(ccgen.cmake)
+#   ...
+#   add_executable(MY_TARGET src1.c, src2.c, src3.yaml)
+#   ...
+#   ccgen(MY_TARGET)
+#   target
+#
+# To use, feel free to copy this file to your CMakeLists.txt directory.
+
+function(ccgen target)
+    get_target_property(sources ${target} SOURCES)
+    foreach(yaml_file in ${sources})
+        cmake_path(GET yaml_file EXTENSION ext)
+        if("${ext}" MATCHES ".*\.ccgen\.yaml$")
+            cmake_path(GET yaml_file STEM gen)
+            add_custom_command(
+                COMMAND ${Python3_EXECUTABLE} -m ccgen "${yaml_file}" -o "${CMAKE_BINARY_DIR}"
+                OUTPUT
+                    "${CMAKE_BINARY_DIR}/${gen}.ccgen.c"
+                    "${CMAKE_BINARY_DIR}/${gen}.ccgen.h"
+                DEPENDS
+                    "${yaml_file}"
+                COMMENT "CCGen - genetate files."
+                WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
+            )
+            target_sources(
+                ${target}
+                PRIVATE
+                "${CMAKE_BINARY_DIR}/${gen}.ccgen.c"
+                "${CMAKE_BINARY_DIR}/${gen}.ccgen.h"
+            )
+        endif()
+    endforeach()
+    target_include_directories(${target} PUBLIC "${CMAKE_BINARY_DIR}")
+endfunction()

examples/01_poc/CMakeLists.txt

@@ -1,8 +1,12 @@
 cmake_minimum_required(VERSION 3.23)
 project(MyProject)
 
-include(ccgen.cmake)
+find_package(Python3 REQUIRED COMPONENTS Interpreter)
 
-add_executable(MyExec main.c enums.ccgen.yaml)
+execute_process(COMMAND ${Python3_EXECUTABLE} -m ccgen.cmake OUTPUT_VARIABLE CCGEN_CMAKE OUTPUT_STRIP_TRAILING_WHITESPACE)
+list(APPEND CMAKE_MODULE_PATH "${CCGEN_CMAKE}")
+
+include(ccgen)
 
+add_executable(MyExec main.c enums.ccgen.yaml)
 ccgen(MyExec)

pyproject.toml

@@ -1,7 +1,7 @@
 [project]
 name = "ccgen"
 description = "Simple C code generator for enums."
-version = "0.1.1"
+version = "0.1.2"
 classifiers = [
     "License :: OSI Approved :: MIT License",
 ]