fix sdist detection

plugins/hatch/hatch_una/hatch_build.py

@@ -34,6 +34,11 @@ def initialize(self, version: str, build_data: dict[str, Any]) -> None:
             # this is fine, the package doesn't import anything internally
             return
 
+        via_sdist = Path("PKG-INFO").exists()
+        if via_sdist:
+            # nothing to do as everything should already be included in sdist...
+            return
+
         # make sure all int_deps exist
         found = [Path(k) for k in int_deps if (path / k).exists()]
         missing = set(int_deps) - set(str(p) for p in found)

plugins/pdm/pdm_una/include.py

@@ -24,15 +24,15 @@ def force_include(context: Context) -> None:
     except KeyError as e:
         raise KeyError(f"Package '{name}' is missing '[tool.una.deps]' in pyproject.toml") from e
 
-    via_sdist = True
-    if via_sdist:
-        # nothing to do as everything should already be included in sdist...
-        raise ValueError("FIX THIS")  # TODO fix this
-
     if not int_deps:
         # this is fine, the package doesn't import anything internally
         return
 
+    via_sdist = Path("PKG-INFO").exists()
+    if via_sdist:
+        # nothing to do as everything should already be included in sdist...
+        return
+
     # make sure all int_deps exist
     found = [Path(k) for k in int_deps if (path / k).exists()]
     missing = set(int_deps) - set(str(p) for p in found)