From 75f4542ea813e14630baaa59fd206d4baf1314ca Mon Sep 17 00:00:00 2001
From: Abdessamad Derraz <3028866+Abdess@users.noreply.github.com>
Date: Thu, 3 Sep 2026 17:51:34 +0200
Subject: [PATCH] refactor: scope validation to a platform's cores

---
 scripts/generate_pack.py | 15 +++++++++------
 scripts/verify.py        | 12 ++++++++++--
 2 files changed, 19 insertions(+), 8 deletions(-)

diff --git a/scripts/generate_pack.py b/scripts/generate_pack.py
index d6d18107..847d8883 100644
--- a/scripts/generate_pack.py
+++ b/scripts/generate_pack.py
@@ -597,14 +597,17 @@ def generate_pack(
     file_status: dict[str, str] = {}
     file_reasons: dict[str, str] = {}
 
-    # Build emulator-level validation index (same as verify.py)
-    validation_index = {}
-    if emu_profiles:
-        validation_index = _build_validation_index(emu_profiles)
-
-    # Filter systems by target if specified
+    # Build emulator-level validation index from the platform's own
+    # emulators (same scope as verify.py)
     from common import resolve_platform_cores
 
+    validation_index = {}
+    if emu_profiles:
+        validation_index = _build_validation_index(
+            {name: emu_profiles[name] for name in resolve_platform_cores(config, emu_profiles)}
+        )
+
+    # Filter systems by target if specified
     plat_cores = (
         resolve_platform_cores(config, emu_profiles or {}) if target_cores else None
     )
diff --git a/scripts/verify.py b/scripts/verify.py
index 00e61245..1d3b5db2 100644
--- a/scripts/verify.py
+++ b/scripts/verify.py
@@ -811,10 +811,18 @@ def verify_platform(
         for f in profile.get("files", []):
             if f.get("hle_fallback"):
                 hle_index[f.get("name", "")] = True
-    validation_index = _build_validation_index(profiles)
+    # Ground truth comes from the emulators the platform runs. A standalone
+    # profile that loads a same-named file of its own (ZEsarUX's 48K
+    # cpc6128.rom against cap32's 32K one) has nothing to say about a
+    # RetroArch pack.
+    plat_cores = resolve_platform_cores(config, profiles)
+    validation_index = _build_validation_index(
+        {name: profiles[name] for name in plat_cores}
+    )
 
     # Filter systems by target
-    plat_cores = resolve_platform_cores(config, profiles) if target_cores else None
+    if not target_cores:
+        plat_cores = None
     verify_systems = filter_systems_by_target(
         config.get("systems", {}),
         profiles,