CMakeLists.txt

cmake_minimum_required (VERSION 3.14)
project(usdtweak)
find_package(OpenGL REQUIRED)
find_package(pxr REQUIRED)
if (${PXR_VERSION} VERSION_GREATER_EQUAL 2208)
    find_package(MaterialX)
endif()
set(CMAKE_CXX_STANDARD 14)
if (${PXR_VERSION} VERSION_GREATER_EQUAL 2311)
    set(CMAKE_CXX_STANDARD 17)
endif()

# for glfw, if the user doesn't specify the glfw install dir, we attempt to
# download the latest version and add it to the project directly
if (DEFINED glfw3_DIR)
    find_package(glfw3 3.3 REQUIRED)
else ()
    include(FetchContent)
    FetchContent_Declare(
        glfw
        URL https://github.com/glfw/glfw/releases/download/3.3.8/glfw-3.3.8.zip
    )
    set(GLFW_BUILD_EXAMPLES OFF)
    set(GLFW_BUILD_TESTS OFF)
    set(GLFW_BUILD_DOCS OFF)
    set(GLFW_INSTALL OFF)
    FetchContent_MakeAvailable(glfw)
endif (DEFINED glfw3_DIR)

# Get the stamp informations, git hash, time stamp, stuff like that
add_custom_target(stamp
  BYPRODUCTS ${CMAKE_CURRENT_SOURCE_DIR}/src/Stamp.h ${CMAKE_CURRENT_SOURCE_DIR}/src/Stamp.cpp
  COMMAND  ${CMAKE_COMMAND}
      -DSRC_DIR="${CMAKE_CURRENT_SOURCE_DIR}"
      -DDST_DIR="${CMAKE_CURRENT_SOURCE_DIR}/src"
      -P "${CMAKE_CURRENT_SOURCE_DIR}/cmake/stamp.cmake"
)

# Use folders in the generated xcode/vs projects
set_property(GLOBAL PROPERTY USE_FOLDERS ON)

if (APPLE)
    set(MACOSX_BUNDLE_ICON_FILE icon.icns)

    # And this part tells CMake where to find and install the file itself
    set(myApp_ICON ${CMAKE_CURRENT_SOURCE_DIR}/src/resources/icon.icns)
    set_source_files_properties(${myApp_ICON} PROPERTIES MACOSX_PACKAGE_LOCATION "Resources")

    add_executable(usdtweak MACOSX_BUNDLE ${myApp_ICON})

    set_target_properties(usdtweak PROPERTIES
        OUTPUT_NAME "usdtweak"
        MACOSX_BUNDLE TRUE)
else()
    add_executable(usdtweak)
endif()
add_dependencies(usdtweak stamp)

add_subdirectory(src)

target_compile_definitions(usdtweak PRIVATE NOMINMAX)
target_link_libraries(usdtweak glfw resources ${OPENGL_gl_LIBRARY} ${PXR_LIBRARIES} ${MATERIALX_LIBRARIES} $<$<CXX_COMPILER_ID:MSVC>:Shlwapi.lib>)
target_include_directories(usdtweak PUBLIC ${OPENGL_INCLUDE_DIR} ${PXR_INCLUDE_DIRS})

set(USE_PYTHON3 OFF CACHE BOOL "Compile with the Python3 target")
if (USE_PYTHON3)
    message(STATUS "Looking for Python3 target")
    find_package(Python3 COMPONENTS Development)
    target_link_libraries(usdtweak Python3::Python)
endif()


# Installer on windows
if(WIN32)
    include("cmake/windows_installer.cmake")
endif()

# Installer on macOS
if(APPLE)
    include("cmake/macos_installer.cmake")
endif()

# Remove warnings coming from usd and enable default multithreaded compilation on windows
target_compile_options(usdtweak PRIVATE
	$<$<CXX_COMPILER_ID:MSVC>:/MP /wd4244 /wd4305 /wd4996>
	$<$<CXX_COMPILER_ID:GNU>:-Wno-deprecated>)

# Fix compilation error with C++17 on macos
if (CMAKE_CXX_COMPILER_ID MATCHES "Clang" AND CMAKE_CXX_STANDARD MATCHES "17")
    add_compile_definitions(_LIBCPP_ENABLE_CXX17_REMOVED_UNARY_BINARY_FUNCTION)
endif()



# Organise the sources using the same hierarchy as the filesystem in xcode and vs projects
get_target_property(USDTWEAK_SOURCES usdtweak SOURCES)
source_group(TREE "${CMAKE_CURRENT_SOURCE_DIR}/src"
    PREFIX "src"
    FILES ${USDTWEAK_SOURCES})