Have cmake copy flatbuffer schema files to simplify dev (#3446)

nano/ipc_flatbuffers_lib/CMakeLists.txt

@@ -48,6 +48,12 @@ foreach(file ${files})
   message(
     "Generating flatbuffers code for: ${flatbuffers_filename} into ${CMAKE_CURRENT_SOURCE_DIR}/generated/flatbuffers"
   )
+
+  configure_file(
+    ${file}
+    ${PROJECT_BINARY_DIR}/${CMAKE_BUILD_TYPE}/api/flatbuffers/${flatbuffers_filename}.fbs
+    COPYONLY)
+
   add_custom_command(
     OUTPUT
       ${CMAKE_CURRENT_SOURCE_DIR}/generated/flatbuffers/${flatbuffers_filename}_generated.h

nano/node/ipc/flatbuffers_handler.cpp

@@ -35,25 +35,15 @@ std::string make_error_response (std::string const & error_message)
 
 /**
  * Returns the 'api/flatbuffers' directory, boost::none if not found.
- * This searches the binary path as well as the parent (which is mostly useful for development)
  */
 boost::optional<boost::filesystem::path> get_api_path ()
 {
-	auto parent_path = boost::dll::program_location ().parent_path ();
-	if (!boost::filesystem::exists (parent_path / "api" / "flatbuffers"))
+	boost::filesystem::path const fb_path = "api/flatbuffers";
+	if (!boost::filesystem::exists (fb_path))
 	{
-		// See if the parent directory has the api subdirectories
-		if (parent_path.has_parent_path ())
-		{
-			parent_path = boost::dll::program_location ().parent_path ().parent_path ();
-		}
-
-		if (!boost::filesystem::exists (parent_path / "api" / "flatbuffers"))
-		{
-			return boost::none;
-		}
+		return boost::none;
 	}
-	return parent_path / "api" / "flatbuffers";
+	return fb_path;
 }
 }