CMakeLists.txt.rename_artifact.in

# This file is only used on Windows, so that we may clean up after ourselves.
# 
# This script is called from CMakeLists.txt.island_prolog - doing so appears to 
# be the only way to ensure that any FILE EXISTS checks happen at compile time
# and not at configure time.

if (${Method} MATCHES Rename)
	
	if(EXISTS ${FileToCheck})
	  # message(STATUS "${FileToCheck} exists.")

	  STRING ( RANDOM rand_str )

	  get_filename_component(dir_name ${FileToCheck} DIRECTORY )
	  get_filename_component(file_name_without_longest_extension ${FileToCheck} NAME_WE )
	  get_filename_component(file_name_longest_extension ${FileToCheck} EXT )

	  set ( generated_file_name "${dir_name}${file_name_without_longest_extension}_${rand_str}${file_name_longest_extension}.old")

	  # message(STATUS "Generated filename: '${generated_file_name}'")

	  FILE ( RENAME ${FileToCheck} ${generated_file_name} )
	  # note that we only *attempt* to remove the old file, it's okay if we don't succeed in case 
	  # another process still holds onto the file (which may be the case for .dll files while hot-
	  # reloading.)
	  FILE ( REMOVE ${generated_file_name} )
	else()
	  # message(STATUS "${FileToCheck} doesn't exist.")
	endif()

elseif (${Method} MATCHES Touch)

	  FILE ( TOUCH ${FileToCheck} )

endif()