conanfile.py

import os
from conan import ConanFile
from conan.tools.files import copy
from conan.tools.cmake import CMakeToolchain, CMake, cmake_layout, CMakeDeps

# you may need the option: 
# -c tools.system.package_manager:mode=install
# -c tools.system.package_manager:sudo=True

# Options can be passed with the command line with the following syntax:
# -o nnf/*:shared=True -o nnf/*:with_tests=False -o nnf/*:with_gui=True

class NexusNodeFramework(ConanFile):
    name = "nnf"
    version = "0.1"

    # Binary configuration
    settings = "os", "compiler", "build_type"
    options = {"shared": [True, False], "with_tests": [True, False], "with_gui": [True, False]}
    default_options = {"shared": False, "with_tests": True, "with_gui": True}

    def requirements(self):
        self.requires("boost/[~1]")
        if self.options.with_gui:
            self.requires("imgui/[~1]")
            self.requires("glad/[~0]")
            self.requires("glfw/[~3]")
        if self.options.with_tests:
            self.requires("gtest/[~1]")

    def build_requirements(self):
        self.tool_requires("cmake/[~3]")
        self.tool_requires("ninja/[~1]")

    def layout(self):
        cmake_layout(self)
        # configure the output of the conan files to '.conan' in linux
        # in windows will be in 'build'
        multi = True if self.settings.get_safe("compiler") == "msvc" else False
        if multi:
            self.folders.generators = os.path.join("build", "generators")
            self.folders.build = "build"
        else: 
            self.folders.generators = os.path.join(".conan", str(self.settings.build_type), "generators")
            self.folders.build = os.path.join(".conan", str(self.settings.build_type))

    def generate(self):
        # imports the backend render from imgui into the folder bindings
        if self.options.with_gui:
            copy(self, "*glfw*", os.path.join(self.dependencies["imgui"].package_folder,
                "res", "bindings"), os.path.join(self.source_folder, "lib/GUI/bindings"))
            copy(self, "*opengl3*", os.path.join(self.dependencies["imgui"].package_folder,
                "res", "bindings"), os.path.join(self.source_folder, "lib/GUI/bindings"))

        # Generates the project files from cmake
        deps = CMakeDeps(self)
        deps.generate()

        tc = CMakeToolchain(self,
                            generator="Ninja")
        tc.variables["CMAKE_EXPORT_COMPILE_COMMANDS"] = "ON"
        tc.variables["CMAKE_BUILD_TYPE"] = self.settings.build_type
        # pass the option BUILD_GUI to the cmake
        tc.variables["BUILD_GUI"] = self.options.with_gui
        tc.variables["ENABLE_TESTING"] = self.options.with_tests
        tc.generate()

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