LYN-4134 Automatically add --project-path=<project> to debugging parameters in Editor/AP for engine-centric (#1081)

Code/Sandbox/Editor/CMakeLists.txt

@@ -177,6 +177,11 @@ ly_add_target(
         Legacy::EditorLib
         ProjectManager
 )
+set_property(SOURCE
+    CryEdit.cpp
+    APPEND PROPERTY
+        COMPILE_DEFINITIONS LY_CMAKE_TARGET="Editor"
+)
 ly_add_translations(
     TARGETS Editor
     PREFIX Translations
@@ -186,15 +191,8 @@ ly_add_translations(
 )
 ly_add_dependencies(Editor AssetProcessor)
 
-if(TARGET Editor)
-    set_property(SOURCE
-        CryEdit.cpp
-        APPEND PROPERTY
-            COMPILE_DEFINITIONS LY_CMAKE_TARGET="Editor"
-    )
-else()
-    message(FATAL_ERROR "Cannot set LY_CMAKE_TARGET define to Editor as the target doesn't exist anymore."
-        " Perhaps it has been renamed")
+if(LY_FIRST_PROJECT_PATH)
+    set_property(TARGET Editor APPEND PROPERTY VS_DEBUGGER_COMMAND_ARGUMENTS "--project-path=\"${LY_FIRST_PROJECT_PATH}\"")
 endif()
 
 ################################################################################

Code/Tools/AssetProcessor/CMakeLists.txt

@@ -125,6 +125,10 @@ ly_add_target(
             AZ::AssetProcessorBatch.Static
 )
 
+if(LY_FIRST_PROJECT_PATH)
+    set_property(TARGET AssetProcessor AssetProcessorBatch APPEND PROPERTY VS_DEBUGGER_COMMAND_ARGUMENTS "--project-path=\"${LY_FIRST_PROJECT_PATH}\"")
+endif()
+
 # Adds the AssetProcessorBatch target as a C preprocessor define so that it can be used as a Settings Registry
 # specialization in order to look up the generated .setreg which contains the dependencies
 # specified for the target.

cmake/Projects.cmake

@@ -167,6 +167,9 @@ endfunction()
 # Add the projects here so the above function is found
 foreach(project ${LY_PROJECTS})
     file(REAL_PATH ${project} full_directory_path BASE_DIRECTORY ${CMAKE_SOURCE_DIR})
+    if(NOT LY_FIRST_PROJECT)
+        ly_set(LY_FIRST_PROJECT_PATH ${full_directory_path})
+    endif()
     string(SHA256 full_directory_hash ${full_directory_path})
 
     # Truncate the full_directory_hash down to 8 characters to avoid hitting the Windows 260 character path limit