Remove CMake legacy code path

Except submodules and legacy_check macro since the former depend on it.

CMakeLists.txt

@@ -1,145 +1,34 @@
 cmake_minimum_required(VERSION 3.22...3.25)
 
-if(CMAKE_HOST_SYSTEM_NAME MATCHES "(Windows|Darwin)" OR OBS_CMAKE_VERSION VERSION_GREATER_EQUAL 3.0.0)
-  include("${CMAKE_CURRENT_SOURCE_DIR}/cmake/common/bootstrap.cmake" NO_POLICY_SCOPE)
+include("${CMAKE_CURRENT_SOURCE_DIR}/cmake/common/bootstrap.cmake" NO_POLICY_SCOPE)
 
-  project(obs-studio VERSION ${OBS_VERSION_CANONICAL})
-
-  if(CMAKE_HOST_SYSTEM_NAME MATCHES "Windows")
-    include("${CMAKE_CURRENT_SOURCE_DIR}/cmake/windows/architecture.cmake")
-    if(NOT OBS_PARENT_ARCHITECTURE STREQUAL CMAKE_GENERATOR_PLATFORM)
-      return()
-    endif()
-  endif()
-
-  include(compilerconfig)
-  include(defaults)
-  include(helpers)
-
-  option(ENABLE_UI "Enable building with UI (requires Qt)" ON)
-  option(ENABLE_SCRIPTING "Enable scripting support" ON)
-  option(ENABLE_HEVC "Enable HEVC encoders" ON)
+project(obs-studio VERSION ${OBS_VERSION_CANONICAL})
 
-  add_subdirectory(libobs)
-  if(OS_WINDOWS)
-    add_subdirectory(libobs-d3d11)
-    add_subdirectory(libobs-winrt)
+if(CMAKE_HOST_SYSTEM_NAME MATCHES "Windows")
+  include("${CMAKE_CURRENT_SOURCE_DIR}/cmake/windows/architecture.cmake")
+  if(NOT OBS_PARENT_ARCHITECTURE STREQUAL CMAKE_GENERATOR_PLATFORM)
+    return()
   endif()
-  add_subdirectory(libobs-opengl)
-  add_subdirectory(plugins)
-
-  add_subdirectory(test/test-input)
-
-  add_subdirectory(UI)
-
-  message_configuration()
-  return()
 endif()
 
-message(
-  DEPRECATION
-  "\n"
-  "============ LEGACY BUILD SYSTEM IS DEPRECATED ============"
-  "\n"
-  "You are using the legacy build system to build OBS Studio. "
-  "The legacy build system is unsupported and will be removed in the near future."
-  "\n"
-  "To migrate to the new build system, familiarize yourself with CMake presets "
-  "(https://cmake.org/cmake/help/latest/manual/cmake-presets.7.html) and create "
-  "a user preset with your customized build settings, inheriting from one of the default presets."
-  "\n"
-  "============ LEGACY BUILD SYSTEM IS DEPRECATED ============"
-)
-
-list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/cmake/Modules")
-include(VersionConfig)
+include(compilerconfig)
+include(defaults)
+include(helpers)
 
-# Prohibit in-source builds
-if("${CMAKE_BINARY_DIR}" STREQUAL "${CMAKE_SOURCE_DIR}")
-  message(
-    FATAL_ERROR
-    "OBS: You cannot build in a source directory (or any directory with CMakeLists.txt file). "
-    "Please make a build subdirectory. Feel free to remove CMakeCache.txt and CMakeFiles."
-  )
-endif()
-
-project(obs-studio VERSION ${OBS_VERSION_CANONICAL})
-set_property(GLOBAL PROPERTY USE_FOLDERS ON)
-
-# Use target folders for MSVC/Xcode/etc.
-include(DeprecationHelpers)
-include(ObsHelpers)
-# Set default compiler flags
-include(CompilerConfig)
-
-# Allow selection of common build types via UI
-if(NOT CMAKE_BUILD_TYPE)
-  set(
-    CMAKE_BUILD_TYPE
-    "RelWithDebInfo"
-    CACHE STRING
-    "OBS build type [Release, RelWithDebInfo, Debug, MinSizeRel]"
-    FORCE
-  )
-  set_property(
-    CACHE CMAKE_BUILD_TYPE
-    PROPERTY STRINGS Release RelWithDebInfo Debug MinSizeRel
-  )
-endif()
-
-# Global project options
-option(ENABLE_HEVC "Enable HEVC encoders" ON)
-if(ENABLE_HEVC)
-  add_compile_definitions(ENABLE_HEVC)
-endif()
-option(BUILD_FOR_DISTRIBUTION "Build for distribution (enables optimizations)" OFF)
 option(ENABLE_UI "Enable building with UI (requires Qt)" ON)
 option(ENABLE_SCRIPTING "Enable scripting support" ON)
-option(USE_LIBCXX "Use libc++ instead of libstdc++" ${APPLE})
-option(BUILD_TESTS "Build test directory (includes test sources and possibly a platform test executable)" OFF)
-
-if(OS_WINDOWS)
-  option(
-    INSTALLER_RUN
-    "Build a multiarch installer (needs to run independently after both archs have compiled) (Windows)"
-    OFF
-  )
-elseif(OS_POSIX)
-  option(LINUX_PORTABLE "Build portable version (Linux)" OFF)
-  option(USE_XDG "Utilize XDG Base Directory Specification (Linux)" ON)
-  option(ENABLE_PULSEAUDIO "Enable PulseAudio support" ON)
-  if(OS_LINUX)
-    option(ENABLE_WAYLAND "Enable building with support for Wayland (Linux)" ON)
-    option(BUILD_FOR_PPA "Build for PPA distribution" OFF)
-  endif()
-endif()
-
-setup_obs_project()
-mark_as_advanced(BUILD_TESTS USE_LIBCXX)
-
-if(INSTALLER_RUN)
-  generate_multiarch_installer()
-  return()
-endif()
+option(ENABLE_HEVC "Enable HEVC encoders" ON)
 
-# OBS sources and plugins
-add_subdirectory(deps)
-add_subdirectory(libobs-opengl)
+add_subdirectory(libobs)
 if(OS_WINDOWS)
   add_subdirectory(libobs-d3d11)
   add_subdirectory(libobs-winrt)
 endif()
-add_subdirectory(libobs)
+add_subdirectory(libobs-opengl)
 add_subdirectory(plugins)
 
-# OBS main app
-add_subdirectory(UI)
+add_subdirectory(test/test-input)
 
-# Tests
-if(ENABLE_UNIT_TESTS)
-  enable_testing()
-endif()
+add_subdirectory(UI)
 
-if(BUILD_TESTS OR ENABLE_UNIT_TESTS)
-  add_subdirectory(test)
-endif()
+message_configuration()

CMakePresets.json

@@ -71,7 +71,6 @@
       "cacheVariables": {
         "CMAKE_BUILD_TYPE": "Debug",
         "CMAKE_INSTALL_LIBDIR": "lib/CMAKE_SYSTEM_PROCESSOR-linux-gnu",
-        "OBS_CMAKE_VERSION": {"type": "STRING", "value": "3.0.0"},
         "ENABLE_AJA": false,
         "ENABLE_VLC": true,
         "ENABLE_WAYLAND": true,