Add mechanism to disable Clang formatting

CMakeLists.txt

@@ -26,6 +26,8 @@ option(USE_DISCORD_PRESENCE "Enables Discord Rich Presence" OFF)
 
 option(ENABLE_SCRIPTING "Enables scripting support" ON)
 
+option(DISABLE_CLANG_TARGET "Disables the Clang format check" ON)
+
 if(NOT EXISTS ${CMAKE_SOURCE_DIR}/.git/hooks/pre-commit)
     message(STATUS "Copying pre-commit hook")
     file(COPY hooks/pre-commit
@@ -310,7 +312,7 @@ find_program(CLANG_FORMAT
           clang-format
     PATHS ${CMAKE_BINARY_DIR}/externals)
 # if find_program doesn't find it, try to download from externals
-if (NOT CLANG_FORMAT)
+if (NOT CLANG_FORMAT AND NOT DISABLE_CLANG_TARGET)
     if (WIN32)
         message(STATUS "Clang format not found! Downloading...")
         set(CLANG_FORMAT "${CMAKE_BINARY_DIR}/externals/clang-format${CLANG_FORMAT_POSTFIX}.exe")
@@ -328,7 +330,7 @@ if (NOT CLANG_FORMAT)
     endif()
 endif()
 
-if (CLANG_FORMAT)
+if (CLANG_FORMAT AND NOT DISABLE_CLANG_TARGET)
     set(SRCS ${CMAKE_SOURCE_DIR}/src)
     set(CCOMMENT "Running clang format against all the .h and .cpp files in src/")
     if (WIN32)