Extract test files so that we can track changes with upcoming commits. (#688)

Author: BernardLefebvre

tests/data/CMakeLists.txt

@@ -1,19 +1,10 @@
 include(ExternalProject)
 
-# Slightly hacky method to force unittest data extraction to be a target
-set(UNITTEST_EXTRACT_DIR "${CMAKE_BINARY_DIR}/testdata/dist")
-ExternalProject_Add(UNITTEST_DATA
-	URL "${CMAKE_CURRENT_SOURCE_DIR}/unittestsfiles.tar.gz"
-	SOURCE_DIR "${CMAKE_BINARY_DIR}/testdata/build"
-	CONFIGURE_COMMAND ""
-	BUILD_COMMAND ""
-	BUILD_IN_SOURCE 1
-	INSTALL_COMMAND ${CMAKE_COMMAND} -E make_directory ${UNITTEST_EXTRACT_DIR}
-	COMMAND ${CMAKE_COMMAND} -E copy_directory ${CMAKE_BINARY_DIR}/testdata/build ${UNITTEST_EXTRACT_DIR}
-	EXCLUDE_FROM_ALL TRUE
-)
+set(UNITTEST_DEST_DIR "${CMAKE_BINARY_DIR}/testdata")
+
 # Need to add this superfluous file command to allow imported target to depend on ExternalProject
-file(MAKE_DIRECTORY ${UNITTEST_EXTRACT_DIR}) 
+file(MAKE_DIRECTORY ${UNITTEST_DEST_DIR})
+file(COPY ${CMAKE_CURRENT_SOURCE_DIR}/files/ DESTINATION ${UNITTEST_DEST_DIR})
 add_library(unittest_data INTERFACE IMPORTED GLOBAL)
-set_property(TARGET unittest_data PROPERTY INTERFACE_COMPILE_DEFINITIONS "OCIO_UNIT_TEST_FILES_DIR=${UNITTEST_EXTRACT_DIR}")
-add_dependencies(unittest_data UNITTEST_DATA)
+set_property(TARGET unittest_data PROPERTY INTERFACE_COMPILE_DEFINITIONS "OCIO_UNIT_TEST_FILES_DIR=${UNITTEST_DEST_DIR}")
+