feat: scraper injects data_directories refs into retroarch.yml

data/.gitignore

@@ -1 +0,0 @@
-.versions.json

platforms/retroarch.yml

@@ -925,6 +925,11 @@ systems:
     manufacturer: Spectravideo|Philips|Al Alamiah|Sony|Sanyo|Mitsubishi|Toshiba|Hitachi|Panasonic|Canon|Casio|Pioneer|Fujitsu|Yamaha|JVC|Kyocera|GoldStar|Samsung|Daewoo|Gradiente|Sharp|Talent|NTT|ACVS/CIEL|DDX|AGE
       Labs
     docs: https://docs.libretro.com/library/bluemsx/
+    data_directories:
+    - ref: bluemsx-databases
+      destination: Databases
+    - ref: bluemsx-machines
+      destination: Machines
   nec-pc-engine:
     files:
     - name: gecard.pce
@@ -1262,6 +1267,9 @@ systems:
     core: dolphin
     manufacturer: Nintendo
     docs: https://docs.libretro.com/library/dolphin/
+    data_directories:
+    - ref: dolphin-sys
+      destination: dolphin-emu/Sys
   nintendo-64dd:
     files:
     - name: 64DD_IPL.bin
@@ -3021,6 +3029,9 @@ systems:
     core: ppsspp
     manufacturer: Sony
     docs: https://docs.libretro.com/library/ppsspp/
+    data_directories:
+    - ref: ppsspp-assets
+      destination: PPSSPP
   ti-83:
     files:
     - name: ti83se.rom

scripts/scraper/libretro_scraper.py

@@ -407,6 +407,24 @@ class Scraper(BaseScraper):
                     g for g in groups if g not in systems[sys_id].get("includes", [])
                 )
 
+        # Data directories: full core data folders included in packs.
+        # ref: each entry cites the core source code requiring the directory.
+        SYSTEM_DATA_DIRS = {
+            "nintendo-gamecube": [
+                {"ref": "dolphin-sys", "destination": "dolphin-emu/Sys"},
+            ],
+            "sony-psp": [
+                {"ref": "ppsspp-assets", "destination": "PPSSPP"},
+            ],
+            "microsoft-msx": [
+                {"ref": "bluemsx-databases", "destination": "Databases"},
+                {"ref": "bluemsx-machines", "destination": "Machines"},
+            ],
+        }
+        for sys_id, data_dirs in SYSTEM_DATA_DIRS.items():
+            if sys_id in systems:
+                systems[sys_id]["data_directories"] = data_dirs
+
         return {
             "platform": "RetroArch",
             "version": metadata["retroarch_version"] or "",