text: from conans import ConanFile, tools
  import os
  
  required_conan_version = ">=1.43.0"
  
  
  class OptionalLiteConan(ConanFile):
      name = "optional-lite"
      url = "https://github.com/conan-io/conan-center-index"
      homepage = "https://github.com/martinmoene/optional-lite"
      description = "A single-file header-only version of a C++17-like optional, a nullable object for C++98, C++11 and later"
      topics = ("cpp98", "cpp17", "optional", "optional-implementations")
      license = "BSL-1.0"
      settings = "os", "arch", "compiler", "build_type"
      no_copy_source = True
  
      @property
      def _source_subfolder(self):
          return "source_subfolder"
  
      def package_id(self):
          self.info.header_only()
  
      def source(self):
          tools.get(**self.conan_data["sources"][self.version],
                    destination=self._source_subfolder, strip_root=True)
  
      def package(self):
          self.copy("*.hpp", dst="include", src=os.path.join(self._source_subfolder, "include"))
          self.copy("LICENSE.txt", dst="licenses", src=self._source_subfolder)
  
      def package_info(self):
          self.cpp_info.set_property("cmake_file_name", "optional-lite")
          self.cpp_info.set_property("cmake_target_name", "nonstd::optional-lite")
  
          # TODO: to remove in conan v2 once cmake_find_package* generators removed
          self.cpp_info.filenames["cmake_find_package"] = "optional-lite"
          self.cpp_info.filenames["cmake_find_package_multi"] = "optional-lite"
          self.cpp_info.names["cmake_find_package"] = "nonstd"
          self.cpp_info.names["cmake_find_package_multi"] = "nonstd"
          self.cpp_info.components["optionallite"].names["cmake_find_package"] = "optional-lite"
          self.cpp_info.components["optionallite"].names["cmake_find_package_multi"] = "optional-lite"
          self.cpp_info.components["optionallite"].set_property("cmake_target_name", "nonstd::optional-lite")
  