From c791d1a237f59b6bf3ea2028004de98a942254fd Mon Sep 17 00:00:00 2001
From: David Markowitz <39972741+EmosewaMC@users.noreply.github.com>
Date: Sun, 23 Jul 2023 12:09:07 -0700
Subject: [PATCH] feature: Auto update of ini files (#1154)

* Add auto update of ini files

Tested that config options that currently exist are not modified.

Tested that if the exact variable name is not located in the destination ini, the config option is added along with all of its corresponding comments.

Comments in the build files are ignored to prevent any possible name collision with comments.

* Fix typos and empty file issue
---
 CMakeLists.txt | 47 ++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 44 insertions(+), 3 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 41d4219f..8f8981ee 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -97,15 +97,56 @@ make_directory(${CMAKE_BINARY_DIR}/logs)
 
 # Copy resource files on first build
 set(RESOURCE_FILES "sharedconfig.ini" "authconfig.ini" "chatconfig.ini" "worldconfig.ini" "masterconfig.ini" "blacklist.dcf")
-foreach(resource_file ${RESOURCE_FILES})
-	if (NOT EXISTS ${PROJECT_BINARY_DIR}/${resource_file})
+message(STATUS "Checking resource file integrity")
+foreach (resource_file ${RESOURCE_FILES})
+	set(file_size 0)
+	if (EXISTS ${PROJECT_BINARY_DIR}/${resource_file})
+		file(SIZE ${PROJECT_BINARY_DIR}/${resource_file} file_size)
+	endif()
+	if (${file_size} EQUAL 0)
 		configure_file(
 			${CMAKE_SOURCE_DIR}/resources/${resource_file} ${PROJECT_BINARY_DIR}/${resource_file}
 			COPYONLY
 		)
-		message("Moved ${resource_file} to project binary directory")
+		message(STATUS "Moved " ${resource_file} " to project binary directory")
+	elseif (resource_file MATCHES ".ini")
+		message(STATUS "Checking " ${resource_file} " for missing config options")
+		file(READ ${PROJECT_BINARY_DIR}/${resource_file} current_file_contents)
+		string(REPLACE "\\\n" "" current_file_contents ${current_file_contents})
+		string(REPLACE "\n" ";" current_file_contents ${current_file_contents})
+		set(parsed_current_file_contents "")
+		# Remove comment lines so they do not interfere with the variable parsing
+		foreach (line ${current_file_contents})
+			string(FIND ${line} "#" is_comment)
+			if (NOT ${is_comment} EQUAL 0)
+				string(APPEND parsed_current_file_contents ${line})
+			endif()
+		endforeach()
+		file(READ ${CMAKE_SOURCE_DIR}/resources/${resource_file} depot_file_contents)
+		string(REPLACE "\\\n" "" depot_file_contents ${depot_file_contents})
+		string(REPLACE "\n" ";" depot_file_contents ${depot_file_contents})
+		set(line_to_add "")
+		foreach (line ${depot_file_contents})
+			string(FIND ${line} "#" is_comment)
+			if (NOT ${is_comment} EQUAL 0)
+				string(REPLACE "=" ";" line_split ${line})
+				list(GET line_split 0 variable_name)
+				if (NOT ${parsed_current_file_contents} MATCHES ${variable_name})
+					message(STATUS "Adding missing config option " ${variable_name} " to " ${resource_file})
+					set(line_to_add ${line_to_add} ${line})
+					foreach (line_to_append ${line_to_add})
+						file(APPEND ${PROJECT_BINARY_DIR}/${resource_file} "\n" ${line_to_append})
+					endforeach()
+					file(APPEND ${PROJECT_BINARY_DIR}/${resource_file} "\n")
+				endif()
+				set(line_to_add "")
+			else()
+				set(line_to_add ${line_to_add} ${line})
+			endif()
+		endforeach()
 	endif()
 endforeach()
+message(STATUS "Resource file integrity check complete")
 
 # Copy navmesh data on first build and extract it
 if (NOT EXISTS ${PROJECT_BINARY_DIR}/navmeshes/)