"${CMAKE_C_FLAGS_RELWITHDEBINFO}") # Remove duplicate whitespace
endif()

option(ENABLE_ASAN_UBSAN "Enable Clang address & undefined behavior sanitizer for nvim binary." OFF)
option(ENABLE_MSAN "Enable Clang memory sanitizer for nvim binary." OFF)
# TSAN exists to test Luv threads.
option(ENABLE_TSAN "Enable Clang thread sanitizer for nvim binary." OFF)

if((ENABLE_ASAN_UBSAN AND ENABLE_MSAN)
    OR (ENABLE_ASAN_UBSAN AND ENABLE_TSAN)
    OR (ENABLE_MSAN AND ENABLE_TSAN))
  message(FATAL_ERROR "Sanitizers cannot be enabled simultaneously")
endif()

# Place targets in bin/ or lib/ for all build configurations
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
foreach(CFGNAME ${CMAKE_CONFIGURATION_TYPES})
  string(TOUPPER ${CFGNAME} CFGNAME)
  set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_${CFGNAME} ${CMAKE_BINARY_DIR}/bin)
  set(CMAKE_LIBRARY_OUTPUT_DIRECTORY_${CFGNAME} ${CMAKE_BINARY_DIR}/lib)
  set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY_${CFGNAME} ${CMAKE_BINARY_DIR}/lib)
endforeach()

if(NOT PREFER_LUA)
  find_program(LUA_PRG NAMES luajit)
endif()
find_program(LUA_PRG NAMES lua5.1 lua5.2 lua)
mark_as_advanced(LUA_PRG)
if(NOT LUA_PRG)
  message(FATAL_ERROR "Failed to find a Lua 5.1-compatible interpreter")
endif()
message(STATUS "Using Lua interpreter: ${LUA_PRG}")

# Some of the code generation still relies on stable table ordering in order to
# produce reproducible output - specifically the msgpack'ed data in
# funcs_metadata.generated.h and ui_events_metadata.generated.h. This should
# ideally be fixed in the generators, but until then as a workaround you may provide
# a specific lua implementation that provides the needed stability by setting LUA_GEN_PRG:
if(NOT LUA_GEN_PRG)
  set(LUA_GEN_PRG "${LUA_PRG}" CACHE FILEPATH "Path to the lua used for code generation.")
endif()
mark_as_advanced(LUA_GEN_PRG)
message(STATUS "Using Lua interpreter for code generation: ${LUA_GEN_PRG}")

option(COMPILE_LUA "Pre-compile Lua sources into bytecode (for sources that are included in the binary)" ON)
if(COMPILE_LUA AND NOT WIN32)
  if(PREFER_LUA)
    foreach(CURRENT_LUAC_PRG luac5.1 luac)
      find_program(_CHECK_LUAC_PRG ${CURRENT_LUAC_PRG})
      if(_CHECK_LUAC_PRG)
        set(LUAC_PRG "${_CHECK_LUAC_PRG} -s -o - %s" CACHE STRING "Format for compiling to Lua bytecode")
        break()
      endif()
    endforeach()
  elseif(LUA_PRG MATCHES "luajit")
    check_lua_module(${LUA_PRG} "jit.bcsave" LUAJIT_HAS_JIT_BCSAVE)
    if(LUAJIT_HAS_JIT_BCSAVE)
      set(LUAC_PRG "${LUA_PRG} -b -s %s -" CACHE STRING "Format for compiling to Lua bytecode")
    endif()
  endif()
endif()
mark_as_advanced(LUAC_PRG)
if(LUAC_PRG)
  message(STATUS "Using Lua compiler: ${LUAC_PRG}")
endif()

# Lint
option(CI_LINT "Abort if lint programs not found" OFF)
if(CI_LINT)
  set(LINT_REQUIRED "REQUIRED")
endif()
find_program(SHELLCHECK_PRG shellcheck ${LINT_REQUIRED})
mark_as_advanced(SHELLCHECK_PRG)
find_program(STYLUA_PRG stylua ${LINT_REQUIRED})
mark_as_advanced(STYLUA_PRG)

set(STYLUA_DIRS runtime scripts src test contrib)

add_glob_target(
  TARGET lintlua-luacheck
  COMMAND $<TARGET_FILE:nvim_bin>
  FLAGS -ll ${PROJECT_SOURCE_DIR}/test/lua_runner.lua ${CMAKE_BINARY_DIR}/usr/share/lua/5.1 luacheck -q
  GLOB_DIRS runtime scripts src test
  GLOB_PAT *.lua
  TOUCH_STRATEGY PER_DIR)
add_dependencies(lintlua-luacheck lua_dev_deps)

add_glob_target(
  TARGET lintlua-stylua
  COMMAND ${STYLUA_PRG}
  FLAGS --color=always --check --respect-ignores
  GLOB_DIRS ${STYLUA_DIRS}
  GLOB_PAT *.lua
  TOUCH_STRATEGY PER_DIR)
# Special handling of some files (which are ignored in .styluaignore).
# Workaround because stylua doesn't(?) support file-specific settings.
add_custom_target(lintlua-stylua2