info: require pkginfo >= 1.12 for METADATA 2.4 support and loosen c…

…heck for unknown METADATA versions (python-poetry#9888)

pyproject.toml

@@ -42,7 +42,7 @@ installer = "^0.7.0"
 keyring = "^25.1.0"
 # packaging uses calver, so version is unclamped
 packaging = ">=24.0"
-pkginfo = "^1.10"
+pkginfo = "^1.12"
 platformdirs = ">=3.0.0,<5"
 pyproject-hooks = "^1.0.0"
 requests = "^2.26"

src/poetry/inspection/info.py

@@ -265,12 +265,13 @@ def _from_distribution(
 
         :param dist: The distribution instance to parse information from.
         """
-        # The current pkginfo version (1.11.2) does not support 2.4.
-        # The fields we are interested in can be parsed nevertheless.
-        supported_metadata_versions = {*pkginfo.distribution.HEADER_ATTRS.keys(), "2.4"}
-        if dist.metadata_version not in supported_metadata_versions:
-            # This check can be replaced once upstream implements strict parsing
-            # https://bugs.launchpad.net/pkginfo/+bug/2058697
+        # If the METADATA version is greater than the highest supported version,
+        # pkginfo prints a warning and tries to parse the fields from the highest
+        # known version. Assuming that METADATA versions adhere to semver,
+        # this should be safe for minor updates.
+        if not dist.metadata_version or dist.metadata_version.split(".")[0] not in {
+            v.split(".")[0] for v in pkginfo.distribution.HEADER_ATTRS
+        }:
             raise ValueError(f"Unknown metadata version: {dist.metadata_version}")
 
         requirements = cls._requirements_from_distribution(dist)

tests/inspection/test_info.py

@@ -202,7 +202,7 @@ def test_info_from_wheel(demo_wheel: Path) -> None:
     assert info._source_url == demo_wheel.resolve().as_posix()
 
 
-@pytest.mark.parametrize("version", ["23", "24"])
+@pytest.mark.parametrize("version", ["23", "24", "299"])
 def test_info_from_wheel_metadata_versions(
     version: str, fixture_dir: FixtureDirGetter
 ) -> None: