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https://github.com/nyakang/nyaterm.git
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Kang
c0fd97179f
Pin package checkouts and validate per-target source provenance before signing or reusing artifacts. Separate verification from GitHub and R2 publication, and exercise invalid signatures and rehearsal publication gates.
72 lines
2.7 KiB
Python
72 lines
2.7 KiB
Python
#!/usr/bin/env python3
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"""Bind package artifacts to the actual checkout, version and producing run."""
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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 re
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from pathlib import Path
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import generate_release_metadata
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import package_native
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def identity(source_sha: str, version: str, run_id: str) -> dict[str, object]:
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if not re.fullmatch(r"[0-9a-f]{40}", source_sha):
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raise ValueError("source SHA must be a full commit SHA")
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if not re.fullmatch(r"[1-9][0-9]*", run_id):
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raise ValueError("run ID must be a positive integer")
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return {
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"schema_version": 1,
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"source_sha": source_sha,
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"version": package_native.validate_version(version),
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"run_id": run_id,
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}
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def record(dist: Path, target: str, source_sha: str, version: str, run_id: str) -> dict:
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if target not in package_native.TARGETS:
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raise ValueError(f"unknown target: {target}")
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result = identity(source_sha, version, run_id)
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result["target"] = target
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result["artifacts"] = {
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name: generate_release_metadata.sha256(dist / name)
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for name in sorted(package_native.artifact_names(target, version))
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}
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return result
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def verify(dist: Path, records: Path, source_sha: str, version: str, run_id: str) -> None:
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expected_records = {f"{target}.json" for target in package_native.TARGETS}
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if {p.name for p in records.iterdir()} != expected_records:
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raise ValueError("incomplete or unexpected provenance records; rebuild all packages")
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for target in package_native.TARGETS:
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actual = json.loads((records / f"{target}.json").read_text(encoding="utf-8"))
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if actual != record(dist, target, source_sha, version, run_id):
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raise ValueError(f"package provenance mismatch for {target}; rebuild packages")
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def main() -> None:
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument("operation", choices=("record", "verify"))
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parser.add_argument("--dist", type=Path, required=True)
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parser.add_argument("--records", type=Path, required=True)
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parser.add_argument("--source-sha", required=True)
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parser.add_argument("--version", required=True)
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parser.add_argument("--run-id", required=True)
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parser.add_argument("--target")
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args = parser.parse_args()
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if args.operation == "record":
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result = record(args.dist, args.target, args.source_sha, args.version, args.run_id)
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args.records.mkdir(parents=True, exist_ok=True)
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(args.records / f"{args.target}.json").write_text(
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json.dumps(result, indent=2) + "\n", encoding="utf-8"
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)
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else:
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verify(args.dist, args.records, args.source_sha, args.version, args.run_id)
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if __name__ == "__main__":
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main()
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