Update validate_pyproject to 0.22

setuptools/config/_validate_pyproject/NOTICE

@@ -1,7 +1,7 @@
 The code contained in this directory was automatically generated using the
 following command:
 
-    python -m validate_pyproject.pre_compile --output-dir=setuptools/config/_validate_pyproject --enable-plugins setuptools distutils --very-verbose -t distutils=setuptools/config/distutils.schema.json -t setuptools=setuptools/config/setuptools.schema.json
+    python -m validate_pyproject.pre_compile --output-dir=setuptools/config/_validate_pyproject --enable-plugins setuptools distutils --very-verbose -t setuptools=setuptools/config/setuptools.schema.json -t distutils=setuptools/config/distutils.schema.json
 
 Please avoid changing it manually.
 

setuptools/config/_validate_pyproject/extra_validations.py

@@ -24,6 +24,13 @@ class RedefiningStaticFieldAsDynamic(ValidationError):
     )
 
 
+class IncludedDependencyGroupMustExist(ValidationError):
+    _DESC = """An included dependency group must exist and must not be cyclic.
+    """
+    __doc__ = _DESC
+    _URL = "https://peps.python.org/pep-0735/"
+
+
 def validate_project_dynamic(pyproject: T) -> T:
     project_table = pyproject.get("project", {})
     dynamic = project_table.get("dynamic", [])
@@ -49,4 +56,27 @@ def validate_project_dynamic(pyproject: T) -> T:
     return pyproject
 
 
-EXTRA_VALIDATIONS = (validate_project_dynamic,)
+def validate_include_depenency(pyproject: T) -> T:
+    dependency_groups = pyproject.get("dependency-groups", {})
+    for key, value in dependency_groups.items():
+        for each in value:
+            if (
+                isinstance(each, dict)
+                and (include_group := each.get("include-group"))
+                and include_group not in dependency_groups
+            ):
+                raise IncludedDependencyGroupMustExist(
+                    message=f"The included dependency group {include_group} doesn't exist",
+                    value=each,
+                    name=f"data.dependency_groups.{key}",
+                    definition={
+                        "description": cleandoc(IncludedDependencyGroupMustExist._DESC),
+                        "see": IncludedDependencyGroupMustExist._URL,
+                    },
+                    rule="PEP 735",
+                )
+    # TODO: check for `include-group` cycles (can be conditional to graphlib)
+    return pyproject
+
+
+EXTRA_VALIDATIONS = (validate_project_dynamic, validate_include_depenency)

setuptools/config/_validate_pyproject/formats.py

@@ -164,12 +164,15 @@ class _TroveClassifier:
     """
 
     downloaded: typing.Union[None, "Literal[False]", typing.Set[str]]
+    """
+    None => not cached yet
+    False => unavailable
+    set => cached values
+    """
 
     def __init__(self) -> None:
         self.downloaded = None
         self._skip_download = False
-        # None => not cached yet
-        # False => cache not available
         self.__name__ = "trove_classifier"  # Emulate a public function
 
     def _disable_download(self) -> None:
@@ -351,7 +354,7 @@ def python_entrypoint_reference(value: str) -> bool:
         obj = rest
 
     module_parts = module.split(".")
-    identifiers = _chain(module_parts, obj.split(".")) if rest else module_parts
+    identifiers = _chain(module_parts, obj.split(".")) if rest else iter(module_parts)
     return all(python_identifier(i.strip()) for i in identifiers)
 
 
@@ -373,3 +376,9 @@ def uint(value: builtins.int) -> bool:
 def int(value: builtins.int) -> bool:
     r"""Signed 64-bit integer (:math:`-2^{63} \leq x < 2^{63}`)"""
     return -(2**63) <= value < 2**63
+
+
+def SPDX(value: str) -> bool:
+    """Should validate eventually"""
+    # TODO: validate conditional to the presence of (the right version) of packaging
+    return True

tox.ini

@@ -86,7 +86,7 @@ commands =
 [testenv:generate-validation-code]
 skip_install = True
 deps =
-	validate-pyproject[all]==0.19
+	validate-pyproject[all]==0.22
 commands =
 	python -m tools.generate_validation_code