mirror of
https://github.com/Abdess/retroarch_system.git
synced 2026-10-11 05:53:23 -05:00
Abdessamad Derraz
dc14089932
Two entries claimed bios/Sony/PlayStation 3/PS3UPDAT.PUP with different SHA1s. Preserving large-file entries matched on path and keyed on SHA1, so replacing a firmware revision on disk left the old entry pointing at a path that now serves other bytes. A preserved entry whose path the scan has already claimed is dropped, and validate_schemas refuses a database where one path carries two entries. Separately, a run without --force rebuilt each cached entry from a hand-written list of four digests and wrote it back without adler32, so one such run stripped the digest from every file permanently. A cache entry missing any digest is now a miss.
245 lines
8.6 KiB
Python
245 lines
8.6 KiB
Python
#!/usr/bin/env python3
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"""Validate source and generated RetroBIOS data contracts."""
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from __future__ import annotations
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import argparse
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import json
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import sys
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import zipfile
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from pathlib import Path, PurePosixPath
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import yaml
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from common import yaml_load
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from jsonschema import Draft202012Validator, FormatChecker
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ROOT = Path(__file__).resolve().parent.parent
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SCHEMAS = ROOT / "schemas"
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def _load_json(path: Path) -> object:
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with path.open(encoding="utf-8") as handle:
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return json.load(handle)
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def _validator(name: str) -> Draft202012Validator:
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schema = _load_json(SCHEMAS / name)
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Draft202012Validator.check_schema(schema)
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return Draft202012Validator(schema, format_checker=FormatChecker())
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def _errors(validator: Draft202012Validator, data: object, label: str) -> list[str]:
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out: list[str] = []
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for error in sorted(validator.iter_errors(data), key=lambda item: list(item.path)):
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location = "/".join(str(part) for part in error.absolute_path) or "<root>"
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out.append(f"{label}:{location}: {error.message}")
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return out
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def _validate_yaml_directory(
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directory: Path,
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schema_name: str,
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*,
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skip_private: bool = False,
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) -> list[str]:
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validator = _validator(schema_name)
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out: list[str] = []
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for path in sorted(directory.glob("*.yml")):
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if skip_private and path.name.startswith("_"):
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continue
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try:
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with path.open(encoding="utf-8") as handle:
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data = yaml_load(handle)
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except (OSError, yaml.YAMLError) as exc:
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out.append(f"{path.relative_to(ROOT)}: {exc}")
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continue
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out.extend(_errors(validator, data, str(path.relative_to(ROOT))))
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return out
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def _validate_json_files(paths: list[Path], schema_name: str) -> list[str]:
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validator = _validator(schema_name)
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out: list[str] = []
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for path in paths:
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try:
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data = _load_json(path)
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except (OSError, json.JSONDecodeError) as exc:
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out.append(f"{path.relative_to(ROOT)}: {exc}")
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continue
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out.extend(_errors(validator, data, str(path.relative_to(ROOT))))
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return out
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def _validate_pack_manifests(dist: Path) -> list[str]:
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"""Validate the integrity manifest each generated pack carries.
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generate_pack.py writes manifest.json inside the archive, not beside it,
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so a filesystem glob over dist/ matches nothing and silently validates
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zero documents.
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"""
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if not dist.is_dir():
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return []
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validator = _validator("pack-manifest.schema.json")
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def _label(path: Path) -> str:
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resolved = path.resolve()
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try:
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return str(resolved.relative_to(ROOT))
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except ValueError:
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return str(resolved)
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out: list[str] = []
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for archive in sorted(dist.glob("*.zip")):
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try:
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with zipfile.ZipFile(archive) as handle:
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members = [
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name
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for name in handle.namelist()
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if PurePosixPath(name).name == "manifest.json"
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]
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for member in members:
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label = f"{_label(archive)}:{member}"
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try:
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document = json.loads(handle.read(member).decode("utf-8"))
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except (UnicodeDecodeError, json.JSONDecodeError) as exc:
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out.append(f"{label}: {exc}")
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continue
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out.extend(_errors(validator, document, label))
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except (OSError, zipfile.BadZipFile) as exc:
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out.append(f"{_label(archive)}: {exc}")
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return out
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def _semantic_envelope_checks(path: Path, document: dict) -> list[str]:
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if document.get("count") != len(document.get("items", [])):
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return [f"{path.relative_to(ROOT)}: count does not equal len(items)"]
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return []
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def _semantic_database_checks(database: dict) -> list[str]:
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out: list[str] = []
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files = database.get("files", {})
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if database.get("total_files") != len(files):
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out.append("database.json: total_files does not equal len(files)")
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if database.get("total_size") != sum(entry.get("size", 0) for entry in files.values()):
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out.append("database.json: total_size does not equal the file-size sum")
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# One path holds one content. Two entries naming the same path means one
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# of them declares a hash the file at that path does not have.
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owners: dict[str, str] = {}
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for sha1, entry in files.items():
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if entry.get("sha1") != sha1:
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out.append(f"database.json: files/{sha1}: key and sha1 differ")
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path = entry.get("path", "")
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if not path:
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continue
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first = owners.setdefault(path, sha1)
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if first != sha1:
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out.append(
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f"database.json: {path} is claimed by {first} and {sha1}"
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)
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return out
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def _semantic_install_checks(path: Path, manifest: dict) -> list[str]:
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out: list[str] = []
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files = manifest.get("files", [])
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if manifest.get("total_files") != len(files):
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out.append(f"{path.relative_to(ROOT)}: total_files does not equal len(files)")
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if manifest.get("total_size") != sum(entry.get("size", 0) for entry in files):
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out.append(f"{path.relative_to(ROOT)}: total_size does not equal the file-size sum")
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omitted = manifest.get("omitted_files", [])
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if manifest.get("total_omitted") != len(omitted):
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out.append(
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f"{path.relative_to(ROOT)}: total_omitted does not equal "
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"len(omitted_files)"
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)
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destinations = [entry.get("dest") for entry in files]
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if len(destinations) != len(set(destinations)):
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out.append(f"{path.relative_to(ROOT)}: duplicate destinations")
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omitted_destinations = [entry.get("dest") for entry in omitted]
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if len(omitted_destinations) != len(set(omitted_destinations)):
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out.append(f"{path.relative_to(ROOT)}: duplicate omitted destinations")
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overlap = set(destinations) & set(omitted_destinations)
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if overlap:
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out.append(
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f"{path.relative_to(ROOT)}: destinations are both downloadable and omitted"
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)
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return out
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def main() -> int:
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument(
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"--source-only",
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action="store_true",
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help="validate emulator/platform YAML only",
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)
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args = parser.parse_args()
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errors: list[str] = []
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errors.extend(
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_validate_yaml_directory(ROOT / "emulators", "emulator.schema.json")
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)
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errors.extend(
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_validate_yaml_directory(
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ROOT / "platforms", "platform.schema.json", skip_private=True
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)
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)
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if not args.source_only:
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database_path = ROOT / "database.json"
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errors.extend(_validate_json_files([database_path], "database.schema.json"))
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if database_path.exists():
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errors.extend(_semantic_database_checks(_load_json(database_path)))
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install_paths = sorted((ROOT / "install").glob("*.json"))
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errors.extend(
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_validate_json_files(install_paths, "install-manifest.schema.json")
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)
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for path in install_paths:
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errors.extend(_semantic_install_checks(path, _load_json(path)))
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target_paths = sorted((ROOT / "install" / "targets").glob("*.json"))
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errors.extend(
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_validate_json_files(target_paths, "target-manifest.schema.json")
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)
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stats_path = ROOT / "docs" / "stats.json"
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if stats_path.exists():
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errors.extend(_validate_json_files([stats_path], "stats.schema.json"))
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api_dir = ROOT / "docs" / "api" / "v1"
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api_database = api_dir / "database.json"
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if api_database.exists():
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errors.extend(
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_validate_json_files([api_database], "database.schema.json")
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)
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api_stats = api_dir / "stats.json"
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if api_stats.exists():
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errors.extend(_validate_json_files([api_stats], "stats.schema.json"))
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envelope_paths = [
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api_dir / name
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for name in ("catalog.json", "platforms.json", "emulators.json", "gaps.json")
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if (api_dir / name).exists()
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]
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errors.extend(
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_validate_json_files(envelope_paths, "site-api-envelope.schema.json")
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)
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for path in envelope_paths:
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errors.extend(_semantic_envelope_checks(path, _load_json(path)))
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errors.extend(_validate_pack_manifests(ROOT / "dist"))
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if errors:
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for error in errors:
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print(f"ERROR {error}")
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print(f"{len(errors)} schema or semantic error(s)")
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return 1
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print("All RetroBIOS schemas and semantic invariants are valid.")
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return 0
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if __name__ == "__main__":
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sys.exit(main())
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