feat: add emudeck and retropie target scrapers

scripts/scraper/targets/emudeck_targets_scraper.py

@@ -0,0 +1,137 @@
+"""Scraper for EmuDeck emulator targets.
+
+Sources:
+  SteamOS: dragoonDorise/EmuDeck — checkBIOS.sh, install scripts
+  Windows: EmuDeck/emudeck-we — checkBIOS.ps1
+"""
+from __future__ import annotations
+
+import argparse
+import re
+import sys
+import urllib.error
+import urllib.request
+from datetime import datetime, timezone
+
+import yaml
+
+from . import BaseTargetScraper
+
+PLATFORM_NAME = "emudeck"
+
+STEAMOS_CHECKBIOS_URL = (
+    "https://raw.githubusercontent.com/dragoonDorise/EmuDeck/"
+    "main/functions/checkBIOS.sh"
+)
+WINDOWS_CHECKBIOS_URL = (
+    "https://raw.githubusercontent.com/EmuDeck/emudeck-we/"
+    "main/functions/checkBIOS.ps1"
+)
+
+# Patterns for emulator name extraction from shell install/check functions
+_SH_EMULATOR_RE = re.compile(
+    r'(?:function\s+|^)(?:check|install|setup)([A-Za-z0-9_]+)\s*\(',
+    re.MULTILINE,
+)
+_PS1_EMULATOR_RE = re.compile(
+    r'(?:function\s+|^)(?:Check|Install|Setup)([A-Za-z0-9_]+)\s*\{',
+    re.MULTILINE,
+)
+
+
+def _fetch(url: str) -> str | None:
+    try:
+        req = urllib.request.Request(
+            url, headers={"User-Agent": "retrobios-scraper/1.0"}
+        )
+        with urllib.request.urlopen(req, timeout=30) as resp:
+            return resp.read().decode("utf-8")
+    except urllib.error.URLError as e:
+        print(f"  skip {url}: {e}", file=sys.stderr)
+        return None
+
+
+def _extract_sh_emulators(text: str) -> list[str]:
+    """Extract emulator names from checkBIOS.sh function declarations."""
+    seen: set[str] = set()
+    results: list[str] = []
+    for m in _SH_EMULATOR_RE.finditer(text):
+        name = m.group(1).lower()
+        if name and name not in seen:
+            seen.add(name)
+            results.append(name)
+    return sorted(results)
+
+
+def _extract_ps1_emulators(text: str) -> list[str]:
+    """Extract emulator names from checkBIOS.ps1 function declarations."""
+    seen: set[str] = set()
+    results: list[str] = []
+    for m in _PS1_EMULATOR_RE.finditer(text):
+        name = m.group(1).lower()
+        if name and name not in seen:
+            seen.add(name)
+            results.append(name)
+    return sorted(results)
+
+
+class Scraper(BaseTargetScraper):
+    """Fetches emulator lists for EmuDeck SteamOS and Windows targets."""
+
+    def __init__(self, url: str = "https://github.com/dragoonDorise/EmuDeck"):
+        super().__init__(url=url)
+
+    def fetch_targets(self) -> dict:
+        print("  fetching SteamOS checkBIOS.sh...", file=sys.stderr)
+        sh_text = _fetch(STEAMOS_CHECKBIOS_URL)
+        steamos_cores = _extract_sh_emulators(sh_text) if sh_text else []
+
+        print("  fetching Windows checkBIOS.ps1...", file=sys.stderr)
+        ps1_text = _fetch(WINDOWS_CHECKBIOS_URL)
+        windows_cores = _extract_ps1_emulators(ps1_text) if ps1_text else []
+
+        targets: dict[str, dict] = {
+            "steamos": {
+                "architecture": "x86_64",
+                "cores": steamos_cores,
+            },
+            "windows": {
+                "architecture": "x86_64",
+                "cores": windows_cores,
+            },
+        }
+
+        return {
+            "platform": "emudeck",
+            "source": self.url,
+            "scraped_at": datetime.now(timezone.utc).strftime("%Y-%m-%dT%H:%M:%SZ"),
+            "targets": targets,
+        }
+
+
+def main() -> None:
+    parser = argparse.ArgumentParser(
+        description="Scrape EmuDeck emulator targets"
+    )
+    parser.add_argument("--dry-run", action="store_true", help="Show target summary")
+    parser.add_argument("--output", "-o", help="Output YAML file")
+    args = parser.parse_args()
+
+    scraper = Scraper()
+    data = scraper.fetch_targets()
+
+    if args.dry_run:
+        for name, info in data["targets"].items():
+            print(f"  {name} ({info['architecture']}): {len(info['cores'])} emulators")
+        return
+
+    if args.output:
+        scraper.write_output(data, args.output)
+        print(f"Written to {args.output}")
+        return
+
+    print(yaml.dump(data, default_flow_style=False, sort_keys=False))
+
+
+if __name__ == "__main__":
+    main()