conanfile.py

from conan import ConanFile
from conan.tools.cmake import CMake, cmake_layout


class LuxWebgpu(ConanFile):
    name = "lux-webgpu"
    version = "0.1.0"
    license = "BSD-3-Clause"
    description = "WebGPU backend plugin for lux-accel"
    package_type = "shared-library"  # Plugin - always shared
    settings = "os", "arch", "compiler", "build_type"
    options = {
        "fPIC": [True, False],
        "with_dawn": [True, False],
    }
    default_options = {
        "fPIC": True,
        "with_dawn": True,
    }

    exports_sources = (
        "CMakeLists.txt",
        "include/*",
        "src/*",
        "test/*",
        "LICENSE*",
    )

    # The plugin is a runtime-loaded module. It only needs backend_api.h from
    # lux-accel at build time; lux-accel is NOT linked.
    def build_requirements(self):
        self.tool_requires("lux-accel/0.1.0")

    def config_options(self):
        if self.settings.os == "Windows":
            del self.options.fPIC

    def layout(self):
        cmake_layout(self)

    def generate(self):
        # CMake auto-detects Dawn / wgpu-native via find_package / find_path.
        pass

    def build(self):
        cmake = CMake(self)
        cmake.configure(variables={
            "LUX_WEBGPU_USE_DAWN": "ON" if self.options.with_dawn else "OFF",
        })
        cmake.build()

    def package(self):
        cmake = CMake(self)
        cmake.install()

    def package_info(self):
        # Plugin - no CMake target export needed (consumers dlopen it).
        self.cpp_info.libs = []
        self.cpp_info.bindirs = []
        self.cpp_info.libdirs = ["lib/lux/plugins"]