fix: count a shared destination once, filled

verify kept the worst verdict on the raw destination, the builder the first one it read. Both now key on the sanitized path and let a declaration that holds a file fill one that finds nothing.

scripts/generate_pack.py

@@ -964,6 +964,11 @@ def generate_pack(
                         dedup_key,
                         existence_discrepancy(file_entry, local_path, platform_display),
                     )
+                if file_status.get(dedup_key) == "missing":
+                    # An earlier declaration of this path found nothing; this
+                    # one fills it, as verify counts it.
+                    del file_status[dedup_key]
+                    file_reasons.pop(dedup_key, None)
                 file_status.setdefault(dedup_key, "ok")
 
                 # Emulator-level validation: informational only for platform packs.

scripts/verify.py

@@ -814,6 +814,12 @@ def _mark_hidden(
     return placed
 
 
+def _dest_key(file_entry: dict, sys_id: str) -> str:
+    """The path a declaration occupies, as the builder keys its pack."""
+    dest = sanitize_pack_path(file_entry.get("destination", file_entry.get("name", "")))
+    return dest or f"{sys_id}/{file_entry.get('name', '')}"
+
+
 def _twin_index(
     verify_systems: dict, db: dict, base_dest: str, zip_contents: dict,
 ) -> tuple[dict[str, int], dict[int, tuple[str, dict]]]:
@@ -1098,19 +1104,25 @@ def verify_platform(
             if _twin_unmet(result, held_by):
                 continue
 
-            # Aggregate by destination
-            dest = file_entry.get("destination", file_entry.get("name", ""))
-            if not dest:
-                dest = f"{sys_id}/{file_entry.get('name', '')}"
+            # Aggregate by destination, keyed as the builder keys its pack.
+            # A declaration that finds nothing leaves the path to one that
+            # holds a file: the builder packs that file there, whatever the
+            # order the two are read in.
+            dest = _dest_key(file_entry, sys_id)
             results_at.setdefault(dest, []).append(result)
             required = file_entry.get("required", True)
             cur = result["status"]
             prev = file_status.get(dest)
+            hle = hle_index.get(file_entry.get("name", ""), False)
+            sev = compute_severity(cur, required, mode, hle)
+            if prev is not None and (cur == Status.MISSING) != (prev == Status.MISSING):
+                if cur == Status.MISSING:
+                    continue
+                del file_status[dest], file_severity[dest]
+                prev = None
             if prev is None or _STATUS_ORDER.get(cur, 0) > _STATUS_ORDER.get(prev, 0):
                 file_status[dest] = cur
                 file_required[dest] = required
-            hle = hle_index.get(file_entry.get("name", ""), False)
-            sev = compute_severity(cur, required, mode, hle)
             prev_sev = file_severity.get(dest)
             if prev_sev is None or _SEVERITY_ORDER.get(sev, 0) > _SEVERITY_ORDER.get(
                 prev_sev, 0
@@ -1192,10 +1204,7 @@ def verify_platform(
     dest_to_name: dict[str, str] = {}
     for sys_id, system in verify_systems.items():
         for fe in system.get("files", []):
-            dest = fe.get("destination", fe.get("name", ""))
-            if not dest:
-                dest = f"{sys_id}/{fe.get('name', '')}"
-            dest_to_name.setdefault(dest, fe.get("name", ""))
+            dest_to_name.setdefault(_dest_key(fe, sys_id), fe.get("name", ""))
     with_validation = sum(
         1 for dest in file_status if dest_to_name.get(dest, "") in gt_filenames
     )

tests/test_core_file_fills_declaration.py

@@ -258,5 +258,57 @@ class AMemberNameIsNotALooseFile(unittest.TestCase):
         )
 
 
+class TwoDeclarationsOfOnePath(unittest.TestCase):
+    """Two systems declare one destination under two names, no hash, one
+    held. The builder packed the held file and kept the first verdict it
+    read; verify kept the worst, on the raw destination. Read either way
+    round, both must count the path once and met."""
+
+    def _run(self, first: str, second: str, spelling: str):
+        _emulator_profiles_cache.clear()
+        root = Path(tempfile.mkdtemp(dir=REPO_ROOT / "tmp"))
+        self.addCleanup(shutil.rmtree, root, True)
+        bios = root / "bios" / "Maker" / "Console"
+        bios.mkdir(parents=True)
+        data = b"SHARED BOOT ROM"
+        (bios / "boot.bin").write_bytes(data)
+        sha1, md5 = hashlib.sha1(data).hexdigest(), hashlib.md5(data).hexdigest()
+        db = {
+            "files": {sha1: {"path": str(bios / "boot.bin"), "name": "boot.bin",
+                             "md5": md5, "crc32": "", "size": len(data)}},
+            "indexes": {"by_md5": {md5: sha1}, "by_name": {"boot.bin": [sha1]},
+                        "by_crc32": {}, "by_path_suffix": {}},
+        }
+        for folder in ("platforms", "emulators"):
+            (root / folder).mkdir()
+        (root / "platforms" / "fakeplat.yml").write_text(yaml.safe_dump({
+            "platform": "FakePlat", "verification_mode": "existence",
+            "base_destination": "system", "cores": [],
+            "systems": {
+                "a-system": {"files": [{"name": first, "destination": "shared.bin"}]},
+                "b-system": {"files": [{"name": second, "destination": spelling}]},
+            },
+        }))
+        config = load_platform_config("fakeplat", str(root / "platforms"))
+        result = verify_platform(config, db, str(root / "emulators"))
+        out = io.StringIO()
+        with redirect_stdout(out):
+            zip_path = generate_pack(
+                "fakeplat", str(root / "platforms"), db, str(root / "bios"),
+                str(root / "out"), emulators_dir=str(root / "emulators"), offline=True,
+            )
+        with zipfile.ZipFile(zip_path) as zf:
+            self.assertIn("shared.bin", zf.namelist())
+        return result["status_counts"], out.getvalue()
+
+    def test_either_order_counts_one_met_path(self):
+        for first, second in (("boot.bin", "absent.bin"), ("absent.bin", "boot.bin")):
+            for spelling in ("shared.bin", "./shared.bin"):
+                with self.subTest(first=first, spelling=spelling):
+                    counts, printed = self._run(first, second, spelling)
+                    self.assertEqual(counts, {"ok": 1})
+                    self.assertIn("1/1 files OK", printed)
+
+
 if __name__ == "__main__":
     unittest.main()