Copy cupcake.json to Conan export folder

conanfile.py

@@ -1,5 +1,6 @@
 from conan import ConanFile, conan_version
 from conan.tools.cmake import CMake, cmake_layout
+from conan.tools.files import copy
 
 from functools import cached_property
 import json
@@ -10,8 +11,6 @@ class Autocheck(ConanFile):
     @cached_property
     def metadata(self):
         path = pathlib.Path(self.recipe_folder) / 'cupcake.json'
-        if not path.is_file():
-            path = path.parent.parent / 'export_source' / 'cupcake.json'
         with open(path, 'r') as file:
             return json.load(file)
 
@@ -48,6 +47,9 @@ def set_version(self):
         'src/*',
     ]
 
+    def export(self):
+        copy(self, 'cupcake.json', self.recipe_folder, self.export_folder)
+
     # For out-of-source build.
     # https://docs.conan.io/en/latest/reference/build_helpers/cmake.html#configure
     no_copy_source = True