Create a new target to copy the files after all the other targets (#326)

Author: jmcarcell

test/k4FWCoreTest/CMakeLists.txt

@@ -54,8 +54,6 @@ gaudi_add_module(k4FWCoreTestPlugins
                  SOURCES ${k4fwcoretest_plugin_sources}
                  LINK Gaudi::GaudiKernel k4FWCore k4FWCore::k4Interface ROOT::Core ROOT::RIO ROOT::Tree podio::podioIO EDM4HEP::edm4hep)
 
-include(CTest)
-
 set(K4RUN ${PROJECT_SOURCE_DIR}/k4FWCore/scripts/k4run)
 
 function(set_test_env testname)
@@ -64,6 +62,19 @@ function(set_test_env testname)
   set_property(TEST ${testname} APPEND PROPERTY ENVIRONMENT "PYTHONPATH=${PROJECT_BINARY_DIR}/${PROJECT_NAME}/genConfDir:${PROJECT_BINARY_DIR}/test/k4FWCoreTest/genConfDir:$ENV{PYTHONPATH}")
 endfunction()
 
+
+# The following is done to make the tests work without installing the files in
+# the installation directory. The k4FWCore in the build directory is populated by
+# Gaudi so we can't just make a k4FWCore folder and put the python files there.
+# We put everything in one of the folders generated by Gaudi so that importing from
+# k4FWCore will give the right result
+add_custom_target(copy_directory ALL
+  COMMAND ${CMAKE_COMMAND} -E copy_directory
+          ${PROJECT_SOURCE_DIR}/python/k4FWCore/ ${PROJECT_BINARY_DIR}/k4FWCore/genConfDir/k4FWCore
+  COMMENT "Copying k4FWCore python package after building all the libraries and plugins"
+  DEPENDS k4FWCoreTestPlugins k4FWCore k4FWCorePlugins
+)
+
 #[[
 add_test_with_env
 -----------------
@@ -234,15 +245,6 @@ add_test_with_env(ReadLimitedInputsAllEventsIOSvc options/ExampleIOSvcLimitInput
 add_test_with_env(ParticleIDMetadataFramework options/ExampleParticleIDMetadata.py)
 
 
-# The following is done to make the tests work without installing the files in
-# the installation directory. The k4FWCore in the build directory is populated by
-# Gaudi so we can't just make a k4FWCore folder and put the python files there.
-# We put everything in one of the folders generated by Gaudi so that importing from
-# k4FWCore will give the right result
-add_custom_command(TARGET k4FWCoreTestPlugins POST_BUILD
-                   COMMAND ${CMAKE_COMMAND} -E copy_directory
-                   ${PROJECT_SOURCE_DIR}/python/k4FWCore/ ${PROJECT_BINARY_DIR}/k4FWCore/genConfDir/k4FWCore)
-
 add_executable(check_ParticleIDOutputs src/check_ParticleIDOutputs.cpp)
 target_link_libraries(check_ParticleIDOutputs PRIVATE podio::podioIO EDM4HEP::edm4hep EDM4HEP::utils fmt::fmt)
 add_test(NAME check_ParticleIDOutputs COMMAND check_ParticleIDOutputs example_with_particleids.root)