Refactor into a single target with multiple cmake commands

ApplicationExeCode/CMakeLists.txt

@@ -381,23 +381,22 @@ else()
 endif(MSVC)
 
 # create an empty library target that will be used to copy files to the build folder
-add_library(ResInsightFileCopyTargets EXCLUDE_FROM_ALL empty.cpp)
-set_property(TARGET ResInsightFileCopyTargets PROPERTY FOLDER "FileCopyTargets")
-
-# Copy dependencies to make it possible to run ResInsight from the build folder
-foreach(full_file_name ${RI_FILENAMES})
-  # Get the filename from the full path.
-  get_filename_component(file_name ${full_file_name} NAME)
-  add_custom_target( prebuild_${file_name}
-    COMMAND ${CMAKE_COMMAND} -E copy_if_different ${full_file_name} $<TARGET_FILE_DIR:ResInsightFileCopyTargets>
-  )
-
-  # My application depends on the each pre-build target.
-  add_dependencies( ResInsight prebuild_${file_name} )
-
-  set_property(TARGET prebuild_${file_name} PROPERTY FOLDER "FileCopyTargets")
+add_library(ResInsightDummyTarget EXCLUDE_FROM_ALL empty.cpp)
+set_property(TARGET ResInsightDummyTarget PROPERTY FOLDER "FileCopyTargets")
 
+# create a custom target that copies the files to the build folder
+foreach(header ${RI_FILENAMES})
+  list(APPEND copyCommands
+    COMMAND ${CMAKE_COMMAND} -E copy_if_different ${header}  $<TARGET_FILE_DIR:ResInsightDummyTarget>)
 endforeach()
+add_custom_target( PreBuildFileCopy
+  COMMENT "PreBuildFileCopy step: copy runtime files into build folder"
+  ${copyCommands}
+)
+set_property(TARGET PreBuildFileCopy PROPERTY FOLDER "FileCopyTargets")
+
+# Make ResInsight depend on the prebuild target.
+ add_dependencies( ResInsight PreBuildFileCopy )
 
 # Generate Python code in a target that is part of ALL_BUILD and depends on
 # ResInsight

ApplicationExeCode/empty.cpp

@@ -1,10 +1,10 @@
 //
-// This empty file is used by ResInsightFileCopyTargets
+// This empty file is used by ResInsightDummyTarget
 //
 // Creating a dummy target with an empty file is used to have a different target than ResInsight.
 // This target is used to find the full path to the build folder.
 //
-// $<TARGET_FILE_DIR:ResInsightFileCopyTargets>
+// $<TARGET_FILE_DIR:ResInsightDummyTarget>
 //
 // If we use the ResInsight target ($<TARGET_FILE_DIR:ResInsight>), we get a circular dependency.
 //