Fix warnings for scripts/gui_scripts with pyproject.toml (#3865)

Author: abravalheri

changelog.d/3865.misc.rst

@@ -0,0 +1,2 @@
+Fixed ``_WouldIgnoreField`` warnings for ``scripts`` and ``gui_scripts``,
+when ``entry-points`` is not listed in dynamic.

setuptools/config/_apply_pyprojecttoml.py

@@ -279,6 +279,12 @@ def _normalise_cmd_options(desc: List[Tuple[str, Optional[str], str]]) -> Set[st
     return {_normalise_cmd_option_key(fancy_option[0]) for fancy_option in desc}
 
 
+def _get_previous_entrypoints(dist: "Distribution") -> Dict[str, list]:
+    ignore = ("console_scripts", "gui_scripts")
+    value = getattr(dist, "entry_points", None) or {}
+    return {k: v for k, v in value.items() if k not in ignore}
+
+
 def _attrgetter(attr):
     """
     Similar to ``operator.attrgetter`` but returns None if ``attr`` is not found
@@ -343,7 +349,7 @@ def _acessor(obj):
     "keywords": _attrgetter("metadata.keywords"),
     "classifiers": _attrgetter("metadata.classifiers"),
     "urls": _attrgetter("metadata.project_urls"),
-    "entry-points": _attrgetter("entry_points"),
+    "entry-points": _get_previous_entrypoints,
     "dependencies": _some_attrgetter("_orig_install_requires", "install_requires"),
     "optional-dependencies": _some_attrgetter("_orig_extras_require", "extras_require"),
 }

setuptools/tests/config/test_apply_pyprojecttoml.py

@@ -363,6 +363,18 @@ def test_optional_dependencies_dont_remove_env_markers(self, tmp_path):
         assert "importlib-resources" in reqs
         assert "bar" in reqs
 
+    @pytest.mark.parametrize(
+        "field,group",
+        [("scripts", "console_scripts"), ("gui-scripts", "gui_scripts")]
+    )
+    @pytest.mark.filterwarnings("error")
+    def test_scripts_dont_require_dynamic_entry_points(self, tmp_path, field, group):
+        # Issue 3862
+        pyproject = self.pyproject(tmp_path, [field])
+        dist = makedist(tmp_path, entry_points={group: ["foobar=foobar:main"]})
+        dist = pyprojecttoml.apply_configuration(dist, pyproject)
+        assert group in dist.entry_points
+
 
 class TestMeta:
     def test_example_file_in_sdist(self, setuptools_sdist):