Changeset: 70 Fix cmake and codegen infra

- Invoke codegen.exe once with a list of changed files, instead of individually for each changed file (this gives the codegen global access to all the code, allowing more things)
- Initial support for outputting an archive SQLite database that contains all the code info

1 files changed, 61 insertions, 19 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index ca9c541..530bf8e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -40,6 +40,30 @@ target_link_libraries(10-common PUBLIC
 	glm::glm
 )
 
+file(GLOB_RECURSE 10-editor-common_SOURCES
+	source/10-editor-common/*.c
+	source/10-editor-common/*.cpp
+)
+add_library(10-editor-common OBJECT ${10-editor-common_SOURCES})
+
+set_target_properties(10-editor-common PROPERTIES
+	CXX_STANDARD 20
+	CXX_STANDARD_REQUIRED ON
+	CXX_EXTENSIONS OFF
+	UNITY_BUILD OFF
+)
+
+target_include_directories(10-editor-common PUBLIC source/10-editor-common)
+target_link_libraries(10-editor-common PUBLIC
+	# External dependencies
+	${CONAN_LIBS}
+	glm::glm
+	imgui
+
+	# Project internal components
+	10-common
+)
+
 # ==============================================================================
 # Layer 20 (building tools)
 
@@ -124,14 +148,6 @@ function(add_projectized_executable)
 		${arg_EXTRA_SOURCES}
 	)
 
-	target_include_directories(${arg_TARGET_NAME} PRIVATE
-		${arg_TARGET_SOURCE_DIR}
-	)
-
-	target_link_libraries(${arg_TARGET_NAME} PRIVATE
-		10-common
-	)
-
 	set_target_properties(${arg_TARGET_NAME} PROPERTIES
 		CXX_STANDARD 20
 		CXX_STANDARD_REQUIRED ON
@@ -143,32 +159,56 @@ function(add_projectized_executable)
 		target_include_directories(${arg_TARGET_NAME} PRIVATE ${var_OUTPUT_DIR})
 		target_link_libraries(${arg_TARGET_NAME} PRIVATE 20-codegen-runtime)
 
+		# https://stackoverflow.com/questions/70371064/run-custom-command-with-modified-files-as-arguments
+		set(var_STAMPS "")
+		set(var_STAMP_LIST ${var_OUTPUT_DIR}/stamplist.txt)
+		set(var_GENERATED_FILE_LIST "")
 		foreach(var_HEADER IN LISTS var_HEADERS)
 			get_filename_component(var_HEADER_ABS "${var_HEADER}" ABSOLUTE)
-			get_filename_component(var_HEADER_NAME "${var_HEADER}" NAME_WLE)
+			get_filename_component(var_HEADER_FILENAME "${var_HEADER}" NAME)
+			get_filename_component(var_HEADER_STEM "${var_HEADER}" NAME_WLE)
+
+			set(var_STAMP_FILE ${var_OUTPUT_DIR}/stamp/${var_HEADER_FILENAME})
+			list(APPEND var_STAMPS ${var_STAMP_FILE})
+			add_custom_command(
+				OUTPUT ${var_STAMP_FILE}
+				COMMAND "${CMAKE_COMMAND}" -E echo "${var_HEADER_ABS}" >> "${var_STAMP_LIST}"
+				COMMAND "${CMAKE_COMMAND}" -E touch "${var_STAMP_FILE}"
+				DEPENDS ${var_HEADER}
+			)
 
 			# Things that are included by other TUs
 			set(var_OUTPUT_HEADERS
-				${var_OUTPUT_DIR}/generated/${var_HEADER_NAME}.gh.inl
-				${var_OUTPUT_DIR}/generated/${var_HEADER_NAME}.gs.inl
+				${var_OUTPUT_DIR}/generated/${var_HEADER_STEM}.gh.inl
+				${var_OUTPUT_DIR}/generated/${var_HEADER_STEM}.gs.inl
 			)
 
 			# Things that needs to be compiled
 			# NOTE: we need at least one of this to make sure the target is rebuilt if the generated files changes
 			set(var_OUTPUT_SOURCES
-				${var_OUTPUT_DIR}/generated/${var_HEADER_NAME}.g.cpp
-			)
-
-			# Generate the files
-			add_custom_command(
-				OUTPUT ${var_OUTPUT_HEADERS} ${var_OUTPUT_SOURCES}
-				COMMAND 20-codegen-compiler ${var_OUTPUT_DIR}/generated single:${var_HEADER}
-				DEPENDS ${var_HEADER}
+				${var_OUTPUT_DIR}/generated/${var_HEADER_STEM}.g.cpp
 			)
 
+			# Record the list of generated files, for the DEPENDS of the actual codegen executable invocation
+			list(APPEND var_GENERATED_FILE_LIST ${var_OUTPUT_HEADERS} ${var_OUTPUT_SOURCES})
 			# Add generated TUs to the target
 			target_sources(${arg_TARGET_NAME} PRIVATE ${var_OUTPUT_SOURCES})
 		endforeach()
+
+		# NOTE: we prepend the target name to the custom targets to mangle them, prevent conflict between different projectized targets
+		add_custom_target(${arg_TARGET_NAME}delete-stamp-list COMMAND "${CMAKE_COMMAND}" -E rm -f "${var_STAMP_LIST}")
+		add_custom_target(${arg_TARGET_NAME}update-stamps DEPENDS ${var_STAMPS})
+		add_dependencies(${arg_TARGET_NAME}update-stamps ${arg_TARGET_NAME}delete-stamp-list)
+		
+		# Actually generate the files, based on the list of changed files
+		add_custom_command(
+			OUTPUT ${var_GENERATED_FILE_LIST}
+			COMMAND 20-codegen-compiler
+				--output-dir=${var_OUTPUT_DIR}/generated
+				--database=${var_OUTPUT_DIR}/model.sqlite3
+				fileList:${var_STAMP_LIST}
+			DEPENDS ${var_STAMPS} ${arg_TARGET_NAME}update-stamps
+		)
 	endif()
 endfunction()
 
@@ -199,6 +239,8 @@ target_link_libraries(30-game PRIVATE
 	tracy
 
 	# Project internal components
+	10-common
+	10-editor-common
 )
 
 target_flag_exceptions(30-game ON)