From 355eb454bb4de45d2d5a950d2b449b04aff616bd Mon Sep 17 00:00:00 2001
From: Aki <please@ignore.pl>
Date: Fri, 16 Sep 2022 19:43:45 +0200
Subject: Added option to skip source directory from datafile

---
 cmake/modules/AddDatafile.cmake | 36 ++++++++++++++++++++----------------
 1 file changed, 20 insertions(+), 16 deletions(-)

(limited to 'cmake/modules/AddDatafile.cmake')

diff --git a/cmake/modules/AddDatafile.cmake b/cmake/modules/AddDatafile.cmake
index ea1c941..d64e865 100644
--- a/cmake/modules/AddDatafile.cmake
+++ b/cmake/modules/AddDatafile.cmake
@@ -15,13 +15,15 @@
 # additional directories with files that will also get included in the final datafile. In case of conflicts, files from
 # source tree will be used. This is to allow working with binary assets located in source directory.
 #
+# SKIP_SOURCE option can be specified to skip adding the files from SOURCE directory completely.
+#
 # To create the archive the dat.exe is used - for non-Windows platforms an emulator that can run it is required.
 
 function(add_datafile DATAFILE_TARGET)
 	cmake_parse_arguments(
 		PARSE_ARGV 1
 		DATAFILE
-		""
+		"SKIP_SOURCE"
 		"SOURCE;OUTPUT"
 		"RESOURCES"
 		)
@@ -60,20 +62,22 @@ function(add_datafile DATAFILE_TARGET)
 				$<TARGET_FILE:dat> -cu $<SHELL_PATH:${DATAFILE_OUTPUT}> .
 			)
 	endforeach()
-	file(
-		GLOB_RECURSE DATAFILE_DEPENDENCIES
-		LIST_DIRECTORIES true
-		CONFIGURE_DEPENDS
-		"${DATAFILE_SOURCE}/*"
-		)
-	add_custom_command(
-		OUTPUT ${DATAFILE_OUTPUT} APPEND
-		DEPENDS ${DATAFILE_DEPENDENCIES}
-		COMMAND
-			${CMAKE_COMMAND} -E chdir ${DATAFILE_SOURCE}
-			${CMAKE_COMMAND} -E env "${DATAFILE_VAR}='${DATAFILE_PATHS}'"
-			${CMAKE_CORSSCOMPILING_EMULATOR}
-			$<TARGET_FILE:dat> -cu $<SHELL_PATH:${DATAFILE_OUTPUT}> .
-		)
+	if(NOT DEFINED DATAFILE_SKIP_SOURCE)
+		file(
+			GLOB_RECURSE DATAFILE_DEPENDENCIES
+			LIST_DIRECTORIES true
+			CONFIGURE_DEPENDS
+			"${DATAFILE_SOURCE}/*"
+			)
+		add_custom_command(
+			OUTPUT ${DATAFILE_OUTPUT} APPEND
+			DEPENDS ${DATAFILE_DEPENDENCIES}
+			COMMAND
+				${CMAKE_COMMAND} -E chdir ${DATAFILE_SOURCE}
+				${CMAKE_COMMAND} -E env "${DATAFILE_VAR}='${DATAFILE_PATHS}'"
+				${CMAKE_CORSSCOMPILING_EMULATOR}
+				$<TARGET_FILE:dat> -cu $<SHELL_PATH:${DATAFILE_OUTPUT}> .
+			)
+	endif()
 	add_custom_target(${DATAFILE_TARGET} ALL DEPENDS ${DATAFILE_OUTPUT})
 endfunction()
-- 
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