The scraper reads emulatorLauncher's generators and es_features.cfg at the commit the BIOS list is pinned to: Ares, Hatari, Mesen, Amiberry, WinUAE, PCSX2, the PSX BIOS cascades, Xemu, openMSX and DuckStation. Each extractor raises when its construct is gone.
Six platforms are read from a branch: System.dat, batocera-systems.json, checkBIOS.sh, the MiSTer BiosDB, the RetroPie scriptmodules and the RetroDECK component manifests. Their YAML named the branch, so the native export patched whatever the branch had become since the scrape. Each scraper now resolves the branch head once, reads every file at that commit and writes it into source. The export follows a recorded tarball and a recorded tree as it already followed a raw file URL.
Batocera, RetroBat, Recalbox and ROCKNIX offer some emulators both as a
libretro core and standalone. Filed as standalone only, the libretro
layout was dropped: libretro Dolphin had no dolphin-emu/Sys/GC files.
Platforms now name dual-mode emulators and each gets both layouts.
Thirty platform system ids, such as sufami, pokemini, vsmile, and
Recalbox's comma-joined msx1,msx2, matched no system any profile
names, so no core file was attributed to them and --system missed them.
The scraper maps now carry those names, and a test holds every platform
system to a profile system apart from two named folds.
RetroBat's platform file carried no core list, and a registry list
copied from Batocera stood in with ports RetroBat never runs and none
of its standalone emulators marked as such. The scraper now reads
es_systems.cfg at the release tag: libretro cores, and every other
emulator as standalone.
Run ruff check --fix: remove unused imports (F401), fix f-strings
without placeholders (F541), remove unused variables (F841), fix
duplicate dict key (F601).
Run isort --profile black: normalize import ordering across all files.
Run ruff format: apply consistent formatting (black-compatible) to
all 58 Python files.
3 intentional E402 remain (imports after require_yaml() must execute
after yaml is available).
Identical _fetch_raw() implementation (URL fetch + cache + error handling)
was duplicated in 4 scrapers. Moved to BaseScraper.__init__ with url param.
Each scraper now passes url to super().__init__() and inherits _fetch_raw().
Eliminates ~48 lines of duplicated code.
DRY audit now clean: resolve logic in common.py, scraper CLI in base_scraper,
_fetch_raw in BaseScraper. Remaining duplications are justified (different
list_platforms semantics, context-specific hash computation).
Abdessamad Derraz