rewite some parts of CMakeLists.txt

Signed-off-by: Nicolas Rol <[email protected]>

Author: rolnico

Diff for: metrix-simulator/CMakeLists.txt

@@ -1,32 +1,41 @@
-# 
+#
 # Copyright (c) 2021, RTE (http://www.rte-france.com)
 # See AUTHORS.txt
 # All rights reserved.
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, you can obtain one at http://mozilla.org/MPL/2.0/.
 # SPDX-License-Identifier: MPL-2.0
-# 
+#
 
+# Minimal CMake required version
 cmake_minimum_required(VERSION 3.14 FATAL_ERROR)
 
+# Include helper functions for creating config files
 include(CMakePackageConfigHelpers)
 
-project(MetrixSimulator 
+# Project description
+project(MetrixSimulator
     VERSION 7.4.0
     LANGUAGES C CXX)
 
+# Explicitly activate policies
 cmake_policy(SET CMP0074 NEW) # Use <package>_ROOT variables to find package
+if(POLICY CMP0167)
+  # The new version of this policy removes the FindBoost.cmake and uses the official Boost Cmake support
+  # However it's only available after the version 1.70+ so, since we ask for version 1.66+, we need the old policy
+  cmake_policy(SET CMP0167 OLD)
+endif()
 
-message("Build directory : ${CMAKE_BINARY_DIR}")
-message("Source directory : ${CMAKE_SOURCE_DIR}")
+# Show build and source directories
+message("-- Build directory : ${CMAKE_BINARY_DIR}")
+message("-- Source directory : ${CMAKE_SOURCE_DIR}")
 
+# Enable C++11 standards
 set(CMAKE_CXX_STANDARD 11)
 set(CMAKE_CXX_STANDARD_REQUIRED true)
 
-set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
-set(INSTALL_CMAKE_DIR cmake CACHE PATH "Installation directory for cmake files")
-
+# Specify some parameters depending on if it's run on the compiler
 if(MSVC)
   add_definitions(-D_WIN32_WINNT=0x0A00)
   add_compile_definitions("_CRT_SECURE_NO_WARNINGS")
@@ -46,29 +55,69 @@ else()
   set(CMAKE_C_FLAGS_RELEASE "-O3")
 endif(MSVC)
 
+# Add custom cmake modules to the path
+set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
+
+# Specify where the cmake files will be installed
+set(INSTALL_CMAKE_DIR cmake CACHE PATH "Installation directory for cmake files")
+
+# ==================================== Boost =================================================
 set(Boost_USE_STATIC_LIBS   ON)
 set(Boost_USE_MULTITHREADED ON)
 find_package(Boost 1.66.0 REQUIRED COMPONENTS system program_options log filesystem)
 
+# ================================ Sirius_solver =============================================
+# Add an option to use or not shared library for sirius solver
 option(USE_SIRIUS_SHARED "Use shared library for sirius solver" OFF)
 if (USE_SIRIUS_SHARED)
-    set(SIRIUS_NAME sirius_solver)
+  message("-- Use shared sirius_solver in ${sirius_solver_DIR}")
+  set(SIRIUS_NAME sirius_solver)
 else()
-    set(SIRIUS_NAME sirius_solver_static)
+  message("-- Use static sirius_solver in ${sirius_solver_static_DIR}")
+  set(SIRIUS_NAME sirius_solver_static)
 endif()
 
+# Define already existing sirius installation path
 set(${SIRIUS_NAME}_ROOT ${CMAKE_CURRENT_BINARY_DIR}/external/sirius_solver CACHE PATH "Path where a Sirius installation already exists")
+
+# Find the sirius_solver package
 find_package(${SIRIUS_NAME} REQUIRED)
 
-# SUITESPARSE
-set(SUITESPARSE_HOME ${CMAKE_CURRENT_BINARY_DIR}/external/suitesparse CACHE PATH "Path where an SuiteSparse installation already exists")
-find_package(SuiteSparse REQUIRED)
+# ================================= SuiteSparse ==============================================
+# Add suitesparse cmake directory to the path
+set(SUITESPARSE_DIR ${CMAKE_CURRENT_BINARY_DIR}/external/suitesparse CACHE PATH "Path where an SuiteSparse installation already exists")
+list(APPEND CMAKE_PREFIX_PATH "${SUITESPARSE_DIR}/lib/cmake")
+
+# Find the required SuiteSparse packages
+find_package(AMD REQUIRED)
+find_package(COLAMD REQUIRED)
+find_package(BTF REQUIRED)
+find_package(KLU REQUIRED)
 
+# Find the actual library name
+find_library(SUITESPARSECONFIG_LIB
+        NAMES suitesparseconfig SuiteSparse_config
+        PATHS ${SUITESPARSE_DIR}/lib
+        REQUIRED
+)
+
+# Create an "imported" targer if it does not already exists
+if(NOT TARGET SuiteSparse::config)
+    add_library(SuiteSparse::config UNKNOWN IMPORTED)
+    set_target_properties(SuiteSparse::config PROPERTIES
+            IMPORTED_LOCATION "${SUITESPARSECONFIG_LIB}"
+            INTERFACE_INCLUDE_DIRECTORIES "${SUITESPARSE_DIR}/include"
+    )
+endif()
+
+# ================================= The rest ==============================================
+# Add the log directory to the build
 add_subdirectory(log)
 
 message(STATUS "METRIX")
 
-set(METRIX_HEADERS 
+# Define required headers
+set(METRIX_HEADERS
         src/calcul.h
         src/err/error.h
         src/parametres.h
@@ -92,17 +141,18 @@ set(METRIX_HEADERS
         src/margin_variations_compute.h
     )
 
-set(METRIX_SOURCES 
+# Define required source files
+set(METRIX_SOURCES
         src/calculmacrofonctions.cpp
-        src/err/error.cpp 
-        src/reseau.cpp 
-        src/calculrepports.cpp 
-        src/calculecrirecontraintesdodu.cpp  
-        src/connexite.cpp             
-        src/err/IoDico.cpp                                 
+        src/err/error.cpp
+        src/reseau.cpp
+        src/calculrepports.cpp
+        src/calculecrirecontraintesdodu.cpp
+        src/connexite.cpp
+        src/err/IoDico.cpp
         src/calculeEmpilementGroupes.cpp
         src/metrix.cpp
-        src/metrix2assess.cpp 
+        src/metrix2assess.cpp
         src/config/configuration.cpp
         src/config/input_configuration.cpp
         src/config/variant_configuration.cpp
@@ -115,38 +165,40 @@ set(METRIX_SOURCES
         src/margin_variations_compute.cpp
     )
 
+# Define binary executable file name
 set(target "metrix-simulator")
 
+# Generate a version.h file
 configure_file(${CMAKE_CURRENT_SOURCE_DIR}/cmake/version.h.in ${CMAKE_CURRENT_SOURCE_DIR}/src/config/version.h)
 
-add_executable(${target} 
-${METRIX_HEADERS} ${METRIX_SOURCES})
+# Create the executable
+add_executable(${target}
+  ${METRIX_HEADERS} ${METRIX_SOURCES})
 
+# Add the required directories for the executable
 target_include_directories(${target}
     PRIVATE
     metrix::log
     src
     ${SIRIUS_NAME}
-    SuiteSparse::SuiteSparse_KLU
-    SuiteSparse::SuiteSparse_AMD
-    SuiteSparse::SuiteSparse_COLAMD
-    SuiteSparse::SuiteSparse_BTF
-    SuiteSparse::SuiteSparse_Config
     ${Boost_INCLUDE_DIRS}
 )
+
+# Add the required libraries
 target_link_libraries(${target}
     PRIVATE
     metrix::log
     ${SIRIUS_NAME}
-    SuiteSparse::SuiteSparse_KLU
-    SuiteSparse::SuiteSparse_AMD
-    SuiteSparse::SuiteSparse_COLAMD
-    SuiteSparse::SuiteSparse_BTF
-    SuiteSparse::SuiteSparse_Config
+    SuiteSparse::config
+    SuiteSparse::AMD
+    SuiteSparse::COLAMD
+    SuiteSparse::BTF
+    SuiteSparse::KLU
     ${Boost_LIBRARIES}
     $<$<BOOL:${MSVC}>:msvcrt.lib>
 )
 
+# Checks whether the shared library for Sirius is available and installs it
 if (USE_SIRIUS_SHARED)
     # Export sirius library if using shared
     get_target_property(sirius_PATH_LIB_RELEASE sirius_solver IMPORTED_LOCATION_RELEASE)
@@ -162,12 +214,13 @@ if (USE_SIRIUS_SHARED)
     install(FILES ${sirius_PATH_LIB} DESTINATION lib)
 endif()
 
+# Option to enable code coverage (disabled by default)
 set(CODE_COVERAGE FALSE CACHE BOOL "Enable code coverage")
 if (CODE_COVERAGE)
-    message(STATUS "CODE COVERAGE")
-	set(CMAKE_BUILD_TYPE "Debug")
-    list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}")
-    include(cmake/CodeCoverage)
+    message(STATUS "CODE COVERAGE") # Output message for code coverage
+	set(CMAKE_BUILD_TYPE "Debug") # Switch to Debug build type
+    list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}") # Add current source to module path
+    include(cmake/CodeCoverage) # Include custom code coverage script
     CODE_COVERAGE(NAME code-coverage
         OUTPUT_DIR coverage
         ROOT_DIR src
@@ -176,24 +229,36 @@ if (CODE_COVERAGE)
     )
 endif()
 
+# Install SuiteSparse config files
+install(FILES "${SUITESPARSECONFIG_LIB}" DESTINATION lib)
+
+# Install the executable to bin directory
 install(TARGETS ${target} EXPORT targets RUNTIME DESTINATION bin)
+# Install the CMake configuration files
 install(EXPORT targets
     FILE metrix-simulator-config.cmake
     DESTINATION ${INSTALL_CMAKE_DIR}
 )
+# Install 'etc' directory to the root of install
 install(DIRECTORY ${PROJECT_SOURCE_DIR}/etc DESTINATION .)
 
+# Option to run a reduced scope of tests
 option(METRIX_RUN_ALL_TESTS "Run reduced scope of tests" ON)
 
+# Enable CTest for running tests
 enable_testing()
-add_subdirectory(tests)
 
+# Add the tests subdirectory, which contains the tests
+add_subdirectory(tests)
 
+# Generate a basic package version file for the installed package
 write_basic_package_version_file(
     "${CMAKE_CURRENT_BINARY_DIR}/metrix-simulator-config.cmake"
     VERSION ${MetrixSimulator_VERSION}
     COMPATIBILITY SameMajorVersion
 )
+
+# Install the generated version file to the CMake install directory
 install(FILES "${CMAKE_CURRENT_BINARY_DIR}/metrix-simulator-config.cmake"
     DESTINATION ${INSTALL_CMAKE_DIR}
 )