fix: one id per machine for the games fallback

muOS names its GBA folder gameboyadvance first, which resolved to ares's
game-boy-advance. mgba lists nintendo-gba, so the fallback set was empty
and an unrecognised GBA game got no file. ares, dgen, picodrive, fbneo,
fbalpha2019 and emux_sms now use the ids the other profiles use, with
their old spellings kept as SYSTEM_ALIASES (bios.sms and fbneo's
Spectrum sets had fallen to the other bucket of the RetroArch list).

A folder whose name spells a machine its core does not run now also
holds the core's machines: a PC Engine CD folder run by mednafen_pce_fast
got no System Card. Install lists and install/games regenerated.

scripts/common.py

@@ -3144,6 +3144,27 @@ SYSTEM_ALIASES: dict[str, str] = {
     "snesmsu": "nintendo-snes",
     "megadrivemsu": "sega-megadrive",
     "sgb-msu1": "nintendo-sgb",
+    # Spellings profiles gave a machine the others call by another id:
+    # ares's own system names, dgen and picodrive's sega-genesis beside
+    # sega-megadrive, fbneo's sinclair-spectrum and snk-neogeo-pocket,
+    # emux_sms's sms. muOS names its GBA folder gameboyadvance first, the
+    # folder resolved to ares's game-boy-advance, and an unrecognised GBA
+    # game got no file of the nintendo-gba list.
+    "famicom": "nintendo-nes",
+    "famicom-disk-system": "nintendo-fds",
+    "super-famicom": "nintendo-snes",
+    "game-boy": "nintendo-gb",
+    "game-boy-color": "nintendo-gbc",
+    "game-boy-advance": "nintendo-gba",
+    "neo-geo-pocket": "snk-ngp",
+    "snk-neogeo-pocket": "snk-ngp",
+    "neo-geo-pocket-color": "snk-ngpc",
+    "wonderswan": "bandai-wswan",
+    "wonderswan-color": "bandai-wswanc",
+    "sega-genesis": "sega-megadrive",
+    "genesis": "sega-megadrive",
+    "sinclair-spectrum": "sinclair-zx-spectrum",
+    "sms": "sega-mastersystem",
 }
 
 

scripts/generate_games_index.py

@@ -282,9 +282,19 @@ def resolve_folder(
     An arcade core is the exception: the arcade index names each set's
     files, and its hundred machines would make any unknown file a fallback
     for all of them.
+
+    A name that spells a machine its core does not run adds the core's
+    machines to it: the games run on that core. Mednafen's PC Engine core
+    lists nec-pc-engine, the CD folder resolved to nec-pc-engine-cd alone,
+    and an unrecognised CD game got no System Card.
     """
     resolution = resolver.resolve(folder_names(row), platform)
     own = [str(s) for s in profiles.profiles.get(profile or "", {}).get("systems") or []]
+    if resolution.systems and own and profile not in arcade:
+        runs = {sid for s in own for sid in resolver.equivalents(s)}
+        if not runs & set(resolution.systems):
+            systems = set(resolution.systems) | {resolver.canonical(s) for s in own}
+            return Resolution(sorted(systems), f"{resolution.basis}, and systems of {profile}")
     if resolution.systems or not own:
         return resolution
     if len(own) == 1: