fix: add scripts to _DICT_STR_FIELDS for dynamic metadata. (#1070)

Fixes issue described in
#1047 (comment).

---------

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>
Co-authored-by: Cristian Le <github@lecris.me>
Co-authored-by: Henry Schreiner <HenrySchreinerIII@gmail.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: 4 people

src/scikit_build_core/metadata/__init__.py

@@ -32,6 +32,13 @@
 _DICT_STR_FIELDS = frozenset(
     [
         "urls",
+        "scripts",
+        "gui-scripts",
+    ]
+)
+
+_LIST_DICT_FIELDS = frozenset(
+    [
         "authors",
         "maintainers",
     ]
@@ -42,20 +49,25 @@
     _STR_FIELDS
     | _LIST_STR_FIELDS
     | _DICT_STR_FIELDS
+    | _LIST_DICT_FIELDS
     | frozenset(
         [
             "optional-dependencies",
             "readme",
+            "entry-points",
         ]
     )
 )
 
-T = typing.TypeVar("T", bound="str | list[str] | dict[str, str] | dict[str, list[str]]")
+T = typing.TypeVar(
+    "T",
+    bound="str | list[str] | list[dict[str, str]] | dict[str, str] | dict[str, list[str]] | dict[str, dict[str, str]]",
+)
 
 
 def _process_dynamic_metadata(field: str, action: Callable[[str], str], result: T) -> T:
     """
-    Helper function for processing the an action on the various possible metadata fields.
+    Helper function for processing an action on the various possible metadata fields.
     """
 
     if field in _STR_FIELDS:
@@ -74,7 +86,28 @@ def _process_dynamic_metadata(field: str, action: Callable[[str], str], result:
         ):
             msg = f"Field {field!r} must be a dictionary of strings"
             raise RuntimeError(msg)
-        return {k: action(v) for k, v in result.items()}  # type: ignore[return-value]
+        return {action(k): action(v) for k, v in result.items()}  # type: ignore[return-value]
+    if field in _LIST_DICT_FIELDS:
+        if not isinstance(result, list) or not all(
+            isinstance(k, str) and isinstance(v, str)
+            for d in result
+            for k, v in d.items()
+        ):
+            msg = f"Field {field!r} must be a dictionary of strings"
+            raise RuntimeError(msg)
+        return [{k: action(v) for k, v in d.items()} for d in result]  # type: ignore[return-value]
+    if field == "entry-points":
+        if not isinstance(result, dict) or not all(
+            isinstance(d, dict)
+            and all(isinstance(k, str) and isinstance(v, str) for k, v in d.items())
+            for d in result.values()
+        ):
+            msg = "Field 'entry-points' must be a dictionary of dictionary of strings"
+            raise RuntimeError(msg)
+        return {
+            dk: {action(k): action(v) for k, v in dv.items()}
+            for dk, dv in result.items()
+        }  # type: ignore[return-value]
     if field == "optional-dependencies":
         if not isinstance(result, dict) or not all(
             isinstance(v, list) for v in result.values()

tests/test_dynamic_metadata_unit.py

@@ -1,4 +1,9 @@
+from typing import Any
+
+import pytest
+
 from scikit_build_core.builder._load_provider import process_dynamic_metadata
+from scikit_build_core.metadata import _process_dynamic_metadata
 
 
 def test_template_basic() -> None:
@@ -64,3 +69,37 @@ def test_regex() -> None:
     )
 
     assert pyproject["requires-python"] == ">=scikit_build_core"
+
+
+@pytest.mark.parametrize(
+    ("field", "input", "output"),
+    [
+        pytest.param("version", "{sub}", "42", id="str"),
+        pytest.param("classifiers", ["a", "{sub}"], ["a", "42"], id="list-str"),
+        pytest.param(
+            "scripts",
+            {"a": "{sub}", "{sub}": "b"},
+            {"a": "42", "42": "b"},
+            id="dict-str",
+        ),
+        pytest.param(
+            "authors", [{"name": "{sub}"}], [{"name": "42"}], id="list-dict-str"
+        ),
+        pytest.param(
+            "optional-dependencies",
+            {"dev": ["{sub}"]},
+            {"dev": ["42"]},
+            id="dict-list-str",
+        ),
+        pytest.param("readme", {"text": "{sub}"}, {"text": "42"}, id="readme"),
+        pytest.param(
+            "entry-points",
+            {"ep": {"{sub}": "{sub}"}},
+            {"ep": {"42": "42"}},
+            id="dict-dict-str",
+        ),
+    ],
+)
+def test_actions(field: str, input: Any, output: Any) -> None:
+    result = _process_dynamic_metadata(field, lambda x: x.format(sub=42), input)
+    assert output == result