Merge pull request #64 from DUNE/63-skip-cet-option

Add SKIP_CET option for standalone build without CET/cetmodules

Author: chenel

CMakeLists.txt

@@ -16,13 +16,15 @@
 cmake_minimum_required (VERSION 3.20 FATAL_ERROR)
 # cmake_policy(VERSION 3.18)
 
-find_package(cetmodules REQUIRED)
-project(duneanaobj LANGUAGES CXX)
-set(${PROJECT_NAME}_CMAKE_PROJECT_VERSION_STRING 03.12.00)
+project(duneanaobj VERSION 03.12.00 LANGUAGES CXX)
+set(${PROJECT_NAME}_CMAKE_PROJECT_VERSION_STRING ${PROJECT_VERSION})
 
 message(STATUS "\n\n  ==========================   ${PROJECT_NAME}   ==========================")
 
+option(SKIP_CET "Build without CET/cetmodules dependencies" OFF)
+
 if(DEFINED ENV{UPS_DIR})
+    find_package(cetmodules REQUIRED)
     # cetbuildtools contains our cmake modules
 
     include(CetCMakeEnv)
@@ -59,4 +61,6 @@ endif()
 
 add_subdirectory(duneanaobj)
 
-cet_cmake_config()
+if (NOT SKIP_CET)
+    cet_cmake_config()
+endif()

duneanaobj/StandardRecord/CMakeLists.txt

@@ -1,5 +1,3 @@
-add_subdirectory(Proxy)
-add_subdirectory(Flat)
 
 # for classes_def.xml!!
 include_directories( ${CMAKE_CURRENT_SOURCE_DIR} )
@@ -11,6 +9,9 @@ FILE( GLOB src_files *.cxx )
 # add_compile_options(-Weffc++)
 
 if(DEFINED CETMODULES_CURRENT_PROJECT_NAME)
+    add_subdirectory(Proxy)
+    add_subdirectory(Flat)
+
     cet_make_library( LIBRARY_NAME duneanaobj_StandardRecord
                       SOURCE       ${src_files}
                       LIBRARIES    ROOT::Core ROOT::Physics
@@ -22,6 +23,51 @@ if(DEFINED CETMODULES_CURRENT_PROJECT_NAME)
 
     install_headers()
     install_source()
+elseif(SKIP_CET)
+    # n.b.: missing Proxy, Plain and the dictionary!
+
+    include(GNUInstallDirs)
+
+    # Create and configure library target
+    add_library( StandardRecord SHARED
+                 ${src_files}
+               )
+
+    target_link_libraries( StandardRecord
+                           ROOT::Core ROOT::Physics
+                         )
+
+    # Setup installation
+    file( GLOB headers_files *.h )
+
+    install( TARGETS StandardRecord EXPORT duneanaobjTargets DESTINATION ${CMAKE_INSTALL_LIBDIR} )
+    install( FILES ${headers_files} DESTINATION "include/duneanaobj/StandardRecord" )
+
+    # Setup CMake find_package related files
+    install( EXPORT duneanaobjTargets
+             DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/duneanaobj"
+             NAMESPACE duneanaobj::
+             FILE duneanaobjTargets.cmake
+           )
+
+    include(CMakePackageConfigHelpers)
+    configure_package_config_file( ${CMAKE_CURRENT_SOURCE_DIR}/Config.cmake.in
+                                   "${CMAKE_CURRENT_BINARY_DIR}/duneanaobjConfig.cmake"
+                                   INSTALL_DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/duneanaobj"
+                                   PATH_VARS CMAKE_INSTALL_LIBDIR
+                                 )
+
+    write_basic_package_version_file( "${CMAKE_CURRENT_BINARY_DIR}/duneanaobjConfigVersion.cmake"
+                                      VERSION ${PROJECT_VERSION}
+                                      COMPATIBILITY SameMajorVersion
+                                    )
+
+    # Install these files too
+    install( FILES
+             "${CMAKE_CURRENT_BINARY_DIR}/duneanaobjConfig.cmake"
+             "${CMAKE_CURRENT_BINARY_DIR}/duneanaobjConfigVersion.cmake"
+             DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/duneanaobj"
+           )
 else()
     add_library(duneanaobj_StandardRecord
                 ${src_files})

duneanaobj/StandardRecord/Config.cmake.in

@@ -0,0 +1,4 @@
+
+@PACKAGE_INIT@
+
+include ( "${CMAKE_CURRENT_LIST_DIR}/duneanaobjTargets.cmake" )